NORWEST FUNDS /ME/
497, 1997-10-22
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<PAGE>

                               TAX-FREE INCOME FUNDS
- --------------------------------------------------------------------------------


                                   PROSPECTUS


                                 OCTOBER 1, 1997





                              TAX-FREE INCOME FUND
                                 ---------------
                             COLORADO TAX-FREE FUND
                                 ---------------
                             MINNESOTA TAX-FREE FUND




                                     [LOGO]



                                NOT FDIC INSURED


<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                               TABLE OF CONTENTS
 
 1.  PROSPECTUS SUMMARY..............................................     2
     Highlights of the Funds.........................................     2
     Expense Information.............................................     5
 
 2.  FINANCIAL HIGHLIGHTS............................................     8
 
 3.  INVESTMENT OBJECTIVES AND POLICIES..............................    14
     Tax-Free Income Fund............................................    14
     Colorado Tax-Free Fund..........................................    15
     Minnesota Tax-Free Fund.........................................    16
     Investment Considerations and Risk Factors......................    18
     Additional Investment Policies and Risk Considerations..........    20
 
 4.  MANAGEMENT......................................................    27
     Investment Advisory Services....................................    27
     Management, Administration and Distribution Services............    28
     Shareholder Servicing and Custody...............................    29
     Expenses of the Funds...........................................    29
 
 5.  CHOOSING A SHARE CLASS..........................................    31
     A Shares........................................................    32
     B Shares........................................................    35
 
 6.  HOW TO BUY SHARES...............................................    40
     Minimum Investment..............................................    40
     Purchase Procedures.............................................    40
     Account Application.............................................    42
     General Information.............................................    42
 
 7.  HOW TO SELL SHARES..............................................    43
     General Information.............................................    43
     Redemption Procedures...........................................    43
     Other Redemption Matters........................................    44
 
 8.  OTHER SHAREHOLDER SERVICES......................................    46
     Exchanges.......................................................    46
     Automatic Investment Plan.......................................    47
     Automatic Withdrawal Plan.......................................    48
     Reopening Accounts..............................................    48
 
 9.  DIVIDENDS AND TAX MATTERS.......................................    49
     Dividends.......................................................    49
     Tax Matters.....................................................    49
 
10.  OTHER INFORMATION...............................................    53
     Banking Law Matters.............................................    53
     Determination of Net Asset Value................................    53
     Performance Information.........................................    53
     The Trust and Its Shares........................................    54
<PAGE>
                                                                   PROSPECTUS
 
                                OCTOBER 1, 1997
 
This Prospectus offers A Shares and B Shares of Tax-Free Income Fund, Colorado
Tax-Free Fund and Minnesota Tax-Free Fund (each a "Fund" and collectively the
"Funds"). The Funds are separate tax-exempt, fixed income portfolios of Norwest
Advantage Funds (the "Trust"), which is a registered, open-end, management
investment company. Tax-Free Income Fund is a diversified portfolio; the other
Funds are non-diversified portfolios.
 
This Prospectus sets forth concisely the information concerning the Trust and
the Funds that a prospective investor should know before investing. The Trust
has filed with the Securities and Exchange Commission (the "SEC") a Statement of
Additional Information ("SAI") with respect to each Fund dated October 1, 1997,
as may be further amended from time to time, which is available for reference on
the SEC's Web Site (http://www.sec.gov) and which contains more detailed
information about the Trust and each of the Funds and is incorporated into this
Prospectus by reference. An investor may obtain
a copy of the SAI without charge by contacting the Trust's distributor, Forum
Financial Services, Inc., at Two Portland Square, Portland, Maine 04101 or by
calling (207) 879-0001. Investors should read this Prospectus and retain it for
future reference.
 
Shares of the Colorado and Minnesota Tax-Free Funds are offered solely to
residents of Colorado and Minnesota, respectively.
 
NORWEST ADVANTAGE FUNDS IS A FAMILY OF MUTUAL FUNDS. THE SHARES OF MUTUAL FUNDS
ARE NOT INSURED OR GUARANTEED BY THE U.S. GOVERNMENT, THE FDIC, THE FEDERAL
RESERVE SYSTEM OR ANY OTHER GOVERNMENT AGENCY. THE SHARES ALSO ARE NOT
OBLIGATIONS, DEPOSITS OR ACCOUNTS OF, OR ENDORSED OR GUARANTEED BY NORWEST BANK
MINNESOTA, N.A. OR ANY OTHER BANK OR BANK AFFILIATE.
 
AN INVESTMENT IN SHARES OF ANY MUTUAL FUND IS SUBJECT TO INVESTMENT RISK,
INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
                                                                  1
<PAGE>

1.  PROSPECTUS SUMMARY

HIGHLIGHTS OF THE FUNDS

THE FOLLOWING SUMMARY IS QUALIFIED IN ITS ENTIRETY BY THE MORE DETAILED
INFORMATION CONTAINED IN THIS PROSPECTUS.

INVESTMENT OBJECTIVES AND POLICIES

TAX-FREE INCOME FUND seeks to provide current income exempt from federal
income taxes. This objective is pursued by investing primarily in a
portfolio of investment grade municipal securities, the interest on
which is free from federal income tax.

COLORADO TAX-FREE FUND seeks to provide a high level of current income
exempt from both federal and Colorado state income taxes (including the
alternative minimum tax) consistent with preservation of capital. This
objective is pursued by investing primarily in a portfolio of investment
grade municipal securities of Colorado issuers.

MINNESOTA TAX-FREE FUND seeks to provide a high level of current income
exempt from both federal and Minnesota state income taxes (including the
alternative minimum tax) without assuming undue risk. This objective is
pursued by investing primarily in a portfolio of investment grade
municipal securities of Minnesota issuers.

INVESTMENT ADVISER

NORWEST INVESTMENT MANAGEMENT, INC. ("Norwest"), a subsidiary of Norwest
Bank Minnesota, N.A. ("Norwest Bank"), is the Funds' investment adviser. 
Norwest provides investment advice to various institutions, pension
plans and other accounts and, as of August 31, 1997, managed over
$22 billion in assets.  (See "Management - Investment Advisory
Services.")  Norwest Bank serves as transfer agent, dividend disbursing
agent and custodian of the Trust.  (See "Management - Shareholder
Servicing and Custody.")

FUND MANAGEMENT AND ADMINISTRATION

THE MANAGER OF THE TRUST AND DISTRIBUTOR OF ITS SHARES IS FORUM
FINANCIAL SERVICES, INC. ("Forum"), a registered broker-dealer and
member of the National Association of Securities Dealers, Inc.  Forum
Administrative Services, LLC ("FAS") provides administrative services to
the Funds. (See "Management - Management, Administration and
Distribution Services.")

SHARES OF THE FUNDS

Each Fund currently offers three separate classes of shares: A class ("A
Shares"), B class ("B Shares") and I class ("I Shares").  A Shares and B
Shares are sold through this Prospectus and are collectively referred to
as the "Shares."


2
<PAGE>

    A SHARES.  A Shares are offered at a price equal to their net asset value
    plus a sales charge imposed at the time of purchase or, in some cases, a 
    contingent deferred sales charge imposed on redemptions made within two 
    years of purchase.

    B SHARES.  B Shares are offered at a price equal to their net asset value 
    plus a contingent deferred sales charge imposed on most redemptions made 
    within four years of purchase.  B Shares pay a distribution services fee at
    an annual rate of up to 0.75%, and a maintenance fee in an amount equal to 
    0.25%, of the B Shares' average daily net assets.  B Shares automatically 
    convert to A Shares of the same Fund six years after the end of the calendar
    month in which the B Shares were originally purchased.

The choice of A Shares or B Shares permits each investor to purchase those 
shares that the investor believes to be most beneficial given the amount 
purchased, the length of time the investor expects to hold the shares and 
other circumstances.  A Shares will normally be more beneficial to the 
investor who qualifies for reduced initial sales charges as described below.  
(See "Choosing a Share Class.")

I Shares are offered by a separate Prospectus to fiduciary, agency and 
custodial clients of bank trust departments, trust companies and their 
affiliates.  Shares of each class of a Fund have identical interests in the 
investment portfolio of the Fund and, with certain exceptions, have the same 
rights.  (See "Other Information - The Trust and Its Shares.")

HOW TO BUY AND SELL SHARES

Shares may be purchased or redeemed by mail, by bank wire and through an 
investor's broker-dealer or other financial institution.  The minimum initial 
investment in Shares is $1,000.  The minimum subsequent investment is $100.  
(See "How to Buy Shares" and "How to Sell Shares.")

EXCHANGES

Shareholders may exchange A Shares and B Shares for A Shares and B Shares, 
respectively, of certain other funds of the Trust. In addition, A Shares may 
be exchanged for investor class shares of certain money market funds of the 
Trust and B Shares may be exchanged for exchange class shares of Ready Cash 
Investment Fund of the Trust.  (See "Other Shareholder Services - Exchanges.")

SHAREHOLDER FEATURES

Each Fund offers an Automatic Investment Plan, Automatic Withdrawal Plan and 
Directed Dividend Option.  Purchases of A Shares may be subject to Rights of 
Accumulation, Cumulative Quantity Discounts or a Reinstatement Privilege. 
(See "Other Shareholder Services" and "Choosing a Share Class.")


                                                                              3

<PAGE>

DIVIDENDS AND DISTRIBUTIONS

Dividends of each Fund's net investment income are declared daily and paid 
monthly. Dividends paid out of tax-exempt interest income generally will not 
be subject to federal income tax and applicable state taxes. Each Fund's net 
capital gain, if any, is distributed annually.  All dividends and 
distributions are reinvested in additional Fund shares unless the shareholder 
elects to have them paid in cash.  (See "Dividends and Tax Matters.")

CERTAIN INVESTMENT CONSIDERATIONS 
AND RISK FACTORS

There can be no assurance that any Fund will achieve its investment 
objective, and a Fund's net asset value and total return will fluctuate based 
upon changes in the value of its portfolio securities.  Normally, the value 
of a Fund's investments varies inversely with changes in interest rates.  
Upon redemption, an investment in a Fund may be worth more or less than its 
original value.  The Fund's investments are subject to "credit risk" relating 
to the financial condition of the issuers of the securities that each Fund 
holds.  Each Fund (other than Minnesota Tax-Free Fund), however, invests only 
in investment grade securities (those rated in the top four grades by a 
nationally recognized statistical rating organization ("NRSRO") such as 
Standard & Poor's).  MINNESOTA TAX-FREE FUND may invest in non-investment 
grade municipal securities, which may entail certain risks.  (See "Investment 
Objectives and Policies - Minnesota Tax-Free Fund - Non-Investment Grade 
Securities.")

All investments made by the Funds entail some risk. Certain investments and 
investment techniques, however, entail additional risks, such as the 
potential use of leverage by certain Funds through borrowings, purchasing 
when-issued securities and securities on a forward commitment basis and other 
investment techniques.  (See "Investment Objectives and Policies - Additional 
Investment Policies and Risk Considerations.") The portfolio turnover rate 
for certain Funds may from time to time be high, resulting in increased 
brokerage costs or short-term capital gains or losses. (See "Investment 
Objectives and Policies - Additional Investment Policies and Risk 
Considerations - Portfolio Transactions.")

COLORADO TAX-FREE FUND AND MINNESOTA TAX-FREE FUND each invests principally 
in securities issued by the government of and municipalities in the State of 
Colorado or Minnesota, respectively, and is therefore more susceptible to 
factors adversely affecting issuers in those states than would be a more 
geographically diverse municipal securities portfolio.  Each of these Funds 
is non-diversified, which means they have greater latitude than a diversified 
Fund to invest in fewer issuers and to invest more of their assets in any one 
issuer. Non-diversified funds may present greater risks than a diversified 
fund.  (See "Investment Objectives and Policies - Investment Considerations 
and Risk Factors - Diversification Matters.")


4

<PAGE>

EXPENSE INFORMATION

The purpose of the Shareholder Transaction Expenses and Annual Fund Operating 
Expenses tables in this section is to assist investors in understanding the 
expenses that an investor in Shares of a Fund will bear directly or 
indirectly.

                 SHAREHOLDER TRANSACTION EXPENSES
                    (APPLICABLE TO EACH FUND)

                                                           A           B
                                                         SHARES      SHARES
                                                       ----------------------
Maximum sales charge imposed on purchases 
  (as a percentage of offering price). . . . . . . . .   4.0%(1)      Zero

Maximum deferred sales charge 
  (as a percentage of the lesser of original purchase
  price or redemption proceeds). . . . . . . . . . . .   Zero(2)      4.0%(1)(3)

Exchange Fee . . . . . . . . . . . . . . . . . . . . .   Zero         Zero

(1)  Sales charge waivers and reduced sales charge plans are available
     for A and B Shares.  (See "Choosing a Share Class.")

(2)  If A Shares of a Fund purchased without an initial sales charge
     (purchases of $1,000,000 or more) are redeemed within two years after
     purchase, a deferred sales charge of up to 0.75% will be applied to the
     redemption.  

(3)  The maximum 4.0% deferred sales charge on B Shares of a Fund
     applies to redemptions during the first year after purchase; the charge
     declines thereafter, and is 3.0% for redemptions during the second and
     third years, 2.0% for redemptions during the fourth and fifth years,
     1.0% for redemption during the sixth year, and zero the following year.


                                                                              5

<PAGE>

               ANNUAL FUND OPERATING EXPENSES(4)
          (AS A PERCENTAGE OF AVERAGE DAILY NET ASSETS)

<TABLE>
<CAPTION>
                                                            TAX-FREE INCOME    COLORADO TAX-FREE   MINNESOTA TAX-FREE 
                                                                 FUND(7)            FUND                 FUND(6)
                                                           -----------------   -----------------   ------------------
                                                              A          B       A          B        A          B 
                                                           SHARES     SHARES   SHARES     SHARES   SHARES     SHARES
                                                           -----------------   -----------------   ------------------
<S>                                                        <C>        <C>      <C>      <C>        <C>        <C>
Investment Advisory Fees(5) (after fee waivers). . . . . .  0.44%      0.44%    0.36%      0.36%    0.33%      0.33%
Rule 12b-1 Fees(6) (after fee waivers) . . . . . . . . . .  None       0.75%    None       0.75%    None       0.75%
Other Expenses (after fee waivers and reimbursements). . .  0.16%      0.16%    0.24%      0.24%    0.27%      0.27%
                                                           -----------------   -----------------   ------------------
Total Operating Expenses(7). . . . . . . . . . . . . . . .  0.60%      1.35%    0.60%      1.35%    0.60%      1.35%
</TABLE>

(4)    For a further description of the various expenses associated with
       investing in the Funds, see "Management." Expenses associated with I
       Shares of a Fund differ from those listed in the table. The table is
       based on amounts incurred during the Funds' most recent fiscal year
       ended May 31, 1997, restated to reflect current fees.

(5)    Absent waivers, "Investment Advisory Fees" for A Shares and B
       Shares of each Fund would be 0.50%.

(6)    Absent waivers, "Rule 12b-1 Fees" would be 1.00% for B Shares of
       each Fund.  Long-term shareholders of B Shares may pay Rule 12b-1 Fees
       and contingent deferred sales charges totaling in the aggregate more
       than the economic equivalent of the maximum front-end sales charges
       permitted by the rules of the National Association of Securities
       Dealers, Inc.

(7)    Absent expense reimbursements and fee waivers, the expenses of A
       Shares of Tax-Free Income Fund, Colorado Tax-Free Fund and Minnesota
       Tax-Free Fund would be: "Other Expenses," 0.46%, 0.53% and 0.57%,
       respectively; and "Total Operating Expenses," 0.96%, 1.02% and 1.07%,
       respectively. Absent expense reimbursements and fee waivers, the
       expenses of B Shares of Tax-Free Income Fund, Colorado Tax-Free Fund and
       Minnesota Tax-Free Fund would be: "Other Expenses," 0.53%, 0.53% and
       0.57%, respectively; and "Total Operating Expenses," 2.03%, 2.03% and 
       2.07%, respectively. Expense reimbursements and fee waivers are
       voluntary and may be reduced or eliminated at any time.


EXAMPLE

The following Hypothetical Expense Example indicates the dollar amount of 
expenses that an investor would pay assuming a $1,000 investment in a Fund's 
Shares, the expenses listed in the "Annual Fund Operating Expense" table,  a 
5% annual return, reinvestment of all dividends and distributions, the 
deduction of the maximum initial sales charge for A Shares, the deduction of 
the applicable contingent deferred sales charge for B Shares and the 
conversion of B Shares to A Shares at the end of six years. THE EXAMPLE 
SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES OR 
RETURN. ACTUAL EXPENSES AND RETURN MAY BE GREATER OR LESS THAN INDICATED. The 
5% annual return is not predictive of and does not represent the Funds' 
projected returns; rather, it is required by government regulation. 

                   HYPOTHETICAL EXPENSE EXAMPLE

                                      1 YEAR    3 YEARS   5 YEARS   10 YEARS
                                     ----------------------------------------
TAX-FREE INCOME FUND

   A Shares . . . . . . . . . . . .     46         58       72        112
   B Shares
     Assuming redemption 
      at the end of the period. . .     54         73       94        --
     Assuming no redemption . . . .     14         43       74        --
                                     ----------------------------------------

COLORADO TAX-FREE FUND
   A Shares . . . . . . . . . . . .     46         58       72        112
   B Shares

     Assuming redemption 
      at the end of the period. . .     54         73       94        --
     Assuming no redemption . . . .     14         43       74        --
                                     ----------------------------------------
MINNESOTA TAX-FREE FUND
   A Shares . . . . . . . . . . . .     46         58       72        112
   B Shares
     Assuming redemption 
      at the end of the period. . .     54         73       94        --
     Assuming no redemption . . . .     14         43       74        --


6                                                                             7

<PAGE>

2.  FINANCIAL HIGHLIGHTS

The following tables provide financial highlights for each Fund. This 
information represents selected data for a single outstanding A and B Share 
of each Fund for the periods shown. Information for the periods ended May 31, 
1994 and thereafter was audited by KPMG Peat Marwick LLP, independent 
auditors. Information for prior periods was audited by other independent 
auditors. Each Fund's financial statements for the year ended May 31, 1997, 
and independent auditors' report thereon, are contained in the Fund's Annual 
Report. These financial statements are incorporated by reference into the 
SAI. Further information about each Fund's performance is contained in the 
Fund's Annual Report, which may be obtained from the Trust without charge.


                  TAX-FREE INCOME FUND

<TABLE>
<CAPTION>
                                                                NET                                               
                                                           REALIZED AND                                        
                                    BEGINNING               UNREALIZED   DIVIDENDS   DISTRIBUTIONS    ENDING
                                    NET ASSET      NET         GAIN       FROM NET      FROM NET     NET ASSET 
                                      VALUE    INVESTMENT   (LOSS) ON    INVESTMENT     REALIZED       VALUE   
                                    PER SHARE    INCOME    INVESTMENTS     INCOME         GAIN       PER SHARE 
- -----------------------------------------------------------------------------------------------------------------
<S>                                 <C>        <C>         <C>           <C>         <C>             <C>
A SHARES 
June 1, 1996 to May 31, 1997          $9.78       $0.54        $0.27       ($0.54)          --         $10.05     
June 1, 1995 to May 31, 1996          $9.82       $0.55       ($0.04)      ($0.55)          --          $9.78     
June 1, 1994 to May 31, 1995          $9.60       $0.55        $0.22       ($0.55)          --          $9.82     
June 1, 1993 to May 31, 1994         $10.06       $0.58       ($0.39)      ($0.58)      ($0.07)         $9.60     
June 1, 1992 to May 31, 1993          $9.98       $0.66        $0.11       ($0.66)      ($0.03)        $10.06     
June 1, 1991 to May 31, 1992          $9.95       $0.70        $0.04       ($0.70)      ($0.01)         $9.98     
June 1, 1990 to May 31, 1991          $9.78       $0.70        $0.17       ($0.70)          --          $9.95     
August 1, 1989 to May 31, 1990(a)    $10.00       $0.57       ($0.22)      ($0.57)          --          $9.78     
B SHARES                                                                                              
June 1, 1996 to May 31, 1997          $9.78       $0.46        $0.27       ($0.46)          --         $10.05     
June 1, 1995 to May 31, 1996          $9.82       $0.48       ($0.04)      ($0.48)          --          $9.78     
June 1, 1994 to May 31, 1995          $9.60       $0.48        $0.22       ($0.48)          --          $9.82     
August 6, 1993 to May 31, 1994(a)    $10.17       $0.39       ($0.50)      ($0.39)      ($0.07)         $9.60     
- -----------------------------------------------------------------------------------------------------------------
<CAPTION>
                                     RATIO TO AVERAGE NET ASSETS    
                                  --------------------------------- 
                                                                                                     NET ASSETS 
                                     NET                                               PORTFOLIO      AT END OF 
                                  INVESTMENT    NET       GROSS            TOTAL       TURNOVER        PERIOD 
                                    INCOME    EXPENSES  EXPENSES(b)      RETURN(c)     RATE       (000'S OMITTED)
- -----------------------------------------------------------------------------------------------------------------
<S>                               <C>         <C>       <C>              <C>           <C>        <C>
A SHARES 
June 1, 1996 to May 31, 1997         5.41%      0.50%      1.06%           8.43%        152.33%        $29,217 
June 1, 1995 to May 31, 1996         5.54%      0.40%      1.06%           5.29%        126.20%        $33,914 
June 1, 1994 to May 31, 1995         5.87%      0.60%      1.12%           8.42%        130.90%        $30,786 
June 1, 1993 to May 31, 1994         5.77%      0.60%      1.14%           1.74%        116.54%        $34,426 
June 1, 1992 to May 31, 1993         6.47%      0.60%      1.12%           7.86%         42.81%        $109,983 
June 1, 1991 to May 31, 1992         7.03%      0.34%      1.14%           7.65%         73.66%         $56,250 
June 1, 1990 to May 31, 1991         7.09%      0.14%      1.08%           9.16%        101.11%         $35,215 
August 1, 1989 to May 31, 1990(a)    6.96%(d)   0.03%(d)   0.97%(d)        4.34%(c)      41.16%         $17,439 
B SHARES                                                                                             
June 1, 1996 to May 31, 1997         4.64%      1.26%      2.15%           7.63%        152.33%          $7,329 
June 1, 1995 to May 31, 1996         4.77%      1.14%      2.21%           4.50%        126.20%          $5,897 
June 1, 1994 to May 31, 1995         5.05%      1.35%      2.21%           7.61%        130.90%          $3,729 
August 6, 1993 to May 31, 1994(a)    4.76%(d)   1.31%(d)   2.24%(d)       (0.98%)(c)    116.54%          $2,674 
- -----------------------------------------------------------------------------------------------------------------
</TABLE>

(a)  The Fund commenced operations on August 1, 1989.  The Fund's original 
     class of shares subsequently became A Shares.  The Fund commenced the 
     offering of B Shares on August 6, 1993.

(b)  The ratio of Gross Expenses to Average Net Assets does not reflect fee 
     waivers or expense reimbursements.

(c)  Total Return does not reflect the effects of sales charges.

(d)  Annualized.


8                                                                             9

<PAGE>

              COLORADO TAX-FREE FUND

<TABLE>
<CAPTION>
                                                            NET
                                                        REALIZED AND
                                  BEGINNING              UNREALIZED    DIVIDENDS  DISTRIBUTIONS   ENDING
                                  NET ASSET     NET         GAIN       FROM NET     FROM NET     NET ASSET
                                    VALUE    INVESTMENT   (LOSS) ON   INVESTMENT    REALIZED       VALUE
                                  PER SHARE    INCOME    INVESTMENTS    INCOME        GAIN       PER SHARE
- -------------------------------------------------------------------------------------------------------------
<S>                               <C>        <C>        <C>           <C>         <C>            <C>
A SHARES
June 1, 1996 to May 31, 1997        $9.89      $0.54        $0.33       ($0.54)        --         $10.22
June 1, 1995 to May 31, 1996        $9.90      $0.53       ($0.01)      ($0.53)        --          $9.89
June 1, 1994 to May 31, 1995        $9.69      $0.48        $0.21       ($0.48)        --          $9.90
June 1, 1993 to May 31, 1994(a)    $10.00      $0.51       ($0.30)      ($0.51)      ($0.01)       $9.69
B SHARES                                    
June 1, 1996 to May 31, 1997        $9.90      $0.47        $0.33       ($0.47)        --         $10.23
June 1, 1995 to May 31, 1996        $9.91      $0.46       ($0.01)      ($0.46)        --          $9.90
June 1, 1994 to May 31, 1995        $9.70      $0.41        $0.21       ($0.41)        --          $9.91
August 2, 1993 to May 31, 1994(a)  $10.04      $0.35       ($0.33)      ($0.35)      ($0.01)       $9.70
- -------------------------------------------------------------------------------------------------------------
<CAPTION>
                                  RATIO TO AVERAGE NET ASSETS
                                -------------------------------                                  NET ASSETS
                                    NET                                             PORTFOLIO    AT END OF
                                INVESTMENT     NET         GROSS        TOTAL       TURNOVER      PERIOD
                                  INCOME     EXPENSES    EXPENSES(b)   RETURN(c)      RATE    (000'S OMITTED)
- -------------------------------------------------------------------------------------------------------------
<S>                             <C>        <C>      <C>         <C>      <C>        <C>
A SHARES
June 1, 1996 to May 31, 1997       5.36%       0.45%        1.14%        9.00%       129.26%      $27,806
June 1, 1995 to May 31, 1996       5.30%       0.30%        1.13%        5.35%       171.41%      $26,991
June 1, 1994 to May 31, 1995       5.10%       0.30%        1.15%        7.47%        47.88%      $25,997
June 1, 1993 to May 31, 1994(a)    4.94%       0.07%        1.23%        2.02%        40.92%      $31,724
B SHARES                          
June 1, 1996 to May 31, 1997       4.60%       1.20%        2.15%        8.19%       129.26%       $7,218
June 1, 1995 to May 31, 1996       4.64%       1.05%        2.16%        4.56%       171.41%       $6,400
June 1, 1994 to May 31, 1995       4.32%       1.05%        2.16%        6.67%        47.88%       $5,198
August 2, 1993 to May 31, 1994(a)  4.08%(d)    0.85%(d)     2.24%(d)     0.27%(d)     40.92%       $4,494
- -------------------------------------------------------------------------------------------------------------
</TABLE>


(a)  The Fund commenced operations on June 1, 1993. The Fund's original class of
     shares subsequently became A Shares.  The Fund commenced the offering of B
     Shares on August 2, 1993.

(b)  The ratio of Gross Expenses to Average Net Assets does not reflect fee
     waivers or expense reimbursements.

(c)  Total Return does not reflect the effects of sales charges.

(d)  Annualized.


10                                                                            11

<PAGE>

             MINNESOTA TAX-FREE FUND

<TABLE>
<CAPTION>
                                                                       NET
                                                                  REALIZED AND
                                          BEGINNING                UNREALIZED    DIVIDENDS    DISTRIBUTIONS    ENDING
                                          NET ASSET      NET          GAIN        FROM NET      FROM NET      NET ASSET 
                                            VALUE     INVESTMENT   (LOSS) ON     INVESTMENT     REALIZED        VALUE   
                                          PER SHARE     INCOME     INVESTMENTS     INCOME         GAIN        PER SHARE
- --------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>         <C>         <C>            <C>          <C>             <C>
A SHARES 
June 1, 1996 to May 31, 1997               $10.30       $0.54         $0.27       ($0.54)          --          $10.57   
June 1, 1995 to May 31, 1996               $10.45       $0.56        ($0.15)      ($0.56)          --          $10.30   
June 1, 1994 to May 31, 1995               $10.15       $0.53         $0.30       ($0.53)          --          $10.45   
June 1, 1993 to May 31, 1994               $10.65       $0.53        ($0.31)      ($0.53)       ($0.19)        $10.15   
June 1, 1992 to May 31, 1993               $10.27       $0.55         $0.39       ($0.55)       ($0.01)        $10.65   
December 1, 1991 to May 31, 1992           $10.20       $0.30         $0.11       ($0.30)       ($0.04)        $10.27   
December 1, 1990 to November 30, 1991      $10.15       $0.61         $0.12       ($0.61)       ($0.07)        $10.20   
December 1, 1989 to November 30, 1990      $10.14       $0.62         $0.02       ($0.62)       ($0.01)        $10.15   
December 1, 1988 to November 30, 1989       $9.78       $0.62         $0.36       ($0.62)          --          $10.14   
January 12, 1988 to November 30, 1988(a)   $10.00       $0.55        ($0.22)      ($0.55)          --           $9.78   
B SHARES 
June 1, 1996 to May 31, 1997               $10.30       $0.46         $0.27       ($0.46)          --          $10.57   
June 1, 1995 to May 31, 1996               $10.44       $0.48        ($0.14)      ($0.48)          --          $10.30   
June 1, 1994 to May 31, 1995               $10.15       $0.45         $0.29       ($0.45)          --          $10.44   
August 6, 1993 to May 31, 1994(a)          $10.77       $0.35        ($0.43)      ($0.35)       ($0.19)        $10.15   
- --------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                 RATIO TO AVERAGE NET ASSETS
                                           -------------------------------------                             NET ASSETS
                                              NET                                              PORTFOLIO      AT END OF
                                           INVESTMENT      NET         GROSS         TOTAL     TURNOVER        PERIOD
                                             INCOME      EXPENSES    EXPENSES(b)   RETURN(c)     RATE      (000'S OMITTED)
- --------------------------------------------------------------------------------------------------------------------------
<S>                                        <C>           <C>         <C>           <C>         <C>         <C>
A SHARES
June 1, 1996 to May 31, 1997                 5.11%        0.60%        1.21%         7.98%       96.68%        $25,739
June 1, 1995 to May 31, 1996                 5.26%        0.48%        1.26%         3.97%       77.10%        $26,610
June 1, 1994 to May 31, 1995                 5.25%        0.49%        1.61%         8.55%      139.33%        $15,559
June 1, 1993 to May 31, 1994                 4.92%        0.61%        1.52%         1.94%       84.23%        $10,008
June 1, 1992 to May 31, 1993                 5.13%        0.75%        1.79%         9.35%       44.29%        $10,852
December 1, 1991 to May 31, 1992             5.86%(d)     0.90%(d)     2.38%(d)      8.10%(d)     6.70%         $4,896
December 1, 1990 to November 30, 1991        6.01%        0.90%        2.63%         7.40%       37.32%         $4,575
December 1, 1989 to November 30, 1990        6.21%        0.90%        2.37%         6.50%       30.86%         $4,243
December 1, 1988 to November 30, 1989        6.21%        0.90%        1.70%        10.30%       26.31%         $5,309
January 12, 1988 to November 30, 1988(a)     6.51%(d)     0.76%(d)     1.47%(d)      4.03%(d)    32.34%         $5,904
B SHARES
June 1, 1996 to May 31, 1997                 4.35%        1.34%        2.21%         7.18%       96.68%        $11,128
June 1, 1995 to May 31, 1996                 4.51%        1.23%        2.29%         3.28%       77.10%         $8,825
June 1, 1994 to May 31, 1995                 4.52%        1.21%        2.62%         7.63%      139.33%         $5,090
August 6, 1993 to May 31, 1994(a)            3.99%(d)     1.31%(d)     2.45%(d)     (0.58%)(d)   84.23%         $2,485
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>

(a)  The Fund commenced operations on January 12, 1988.  The Fund's original
     class of shares subsequently became A Shares.  The Fund commenced the 
     offering of B Shares on August 6, 1993.

(b)  The ratio of Gross Expenses to Average Net Assets does not reflect fee
     waivers or expense reimbursements.

(c)  Total Return does not include the effects of sales charges.

(d)  Annualized.


12                                                                           13
<PAGE>
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3. INVESTMENT OBJECTIVES AND POLICIES
 
TAX-FREE INCOME FUND
 
INVESTMENT OBJECTIVE. The investment objective of Tax-Free Income Fund is to
produce current income exempt from federal income taxes. The Fund pursues this
objective by investing primarily in a portfolio of investment grade fixed income
securities the interest on which is free from federal income tax. There can be
no assurance that the Fund will achieve its investment objective.
INVESTMENT POLICIES. Substantially all of the Fund's total assets normally will
be invested in municipal securities, which are debt obligations issued by or on
behalf of the states, territories or possessions of the United States, the
District of Columbia and their subdivisions, authorities, instrumentalities and
corporations the interest on which is exempt from federal income tax and not
treated as a preference item for individuals for purposes of the federal
alternative minimum tax ("municipal securities"). As a fundamental investment
policy, except during periods when the Fund assumes a temporary defensive
position, the Fund will invest at least 80% of its total assets in securities
exempt from federal income taxes (including the federal alternative minimum
tax). In order to respond to business and financial conditions, the Fund may
invest up to 20% of its assets in instruments on which the interest is subject
to federal taxation. (See "Additional Investment Policies and Risk
Considerations - Temporary Defensive Position;" "- Taxable Investments" and
"Dividends and Tax Matters.")
 
The average dollar-weighted maturity of the Fund's assets normally will be
between 10 and 20 years. Depending on market conditions, however, the average
dollar-weighted maturity could be higher or lower. In general, the longer the
maturity of a municipal security, the higher the rate of interest it pays.
However, a longer maturity is generally associated with a higher level of
volatility in the market value of a security. As the Fund's objective is to
provide high current income, the Fund invests in municipal securities with an
emphasis on income rather than stability of the Fund's net asset value, and the
average maturity of the Fund's portfolio will vary depending on anticipated
market conditions.
 
Substantially all of the Fund's assets will be invested in municipal securities
that are rated within the top four grades by an NRSRO at the time of purchase.
For example, for municipal bonds, these grades are "Aaa," "Aa," "A" and "Baa" in
the case of Moody's Investors Service ("Moody's") and "AAA," "AA," "A" and "BBB"
in the case of Standard & Poor's and Fitch
 
                                       14
<PAGE>
- ----
- ----
Investors Service, L.P. These securities are generally considered to be
investment grade securities, although Moody's indicates that municipal
securities rated "Baa" have speculative characteristics. The Fund also may
invest in unrated securities that Norwest believes are comparable in quality to
rated securities in which the Fund may invest. A description of the rating
categories of certain NRSROs is contained in the SAI.
 
COLORADO TAX-FREE FUND
 
INVESTMENT OBJECTIVE. The investment objective of Colorado Tax-Free Fund is to
seek to provide shareholders with a high level of current income exempt from
both federal and Colorado state income taxes (including the alternative minimum
tax) consistent with the preservation of capital. Shares of the Fund are offered
only to residents of the State of Colorado. There can be no assurance that the
Fund will achieve its investment objective.
 
INVESTMENT POLICIES. Substantially all the Fund's total assets normally will be
invested in investment grade municipal securities, which are debt obligations
issued by the state of Colorado and its political subdivisions, various
authorities, instrumentalities, public corporations and special districts
("municipal securities"). Municipal securities also include the securities
issued by the various territories and possessions of the United States, such as
Puerto Rico. As a fundamental policy, except during periods when the Fund
assumes a temporary defensive position, the Fund will invest at least 80% of its
total assets in securities exempt from both federal and Colorado state income
taxes (including the federal alternative minimum tax). In order to respond to
business and financial conditions, the Fund may invest up to 20% of its assets
in instruments on which the interest is subject to taxation. (See "Additional
Investment Policies - Temporary Defensive Position;" "- Taxable Investments" and
"Dividends and Tax Matters.")
 
The yields of Colorado municipal securities depend on, among other things,
conditions in the Colorado municipal bond market and fixed income markets
generally, the size of a particular offering, the maturity of the obligation and
the rating of the issue. In some cases, Colorado issues may have yields that are
slightly less than the yields of municipal obligations of issuers located in
other states because of the favorable Colorado state tax exemption on Colorado
issues.
 
There are no restrictions on the Fund's average portfolio maturity, but the
average portfolio maturity is currently expected to be greater than 10 years.
Average portfolio maturity may reach or exceed 20 years in the future. In
general, the longer the maturity of a municipal security, the higher the rate of
interest it pays. However, a longer average maturity is generally associated
with a higher level of volatility in the market value of a security. As the
Fund's
 
                                                                  15
<PAGE>
- ----
- ----
objective is to provide high current income, the Fund invests in municipal
securities with an emphasis on income rather than maintaining a stable net asset
value. However, the Fund attempts to limit net asset value fluctuations.
 
Substantially all of the Fund's assets will be invested in municipal securities
that are rated within the top four grades by an NRSRO at the time of purchase.
For example, for municipal bonds, these grades are "Aaa," "Aa," "A" and "Baa" in
the case of Moody's Investors Service ("Moody's") and "AAA," "AA," "A" and "BBB"
in the case of Standard & Poor's and Fitch Investors Service, L.P. These
securities are generally considered to be investment grade securities, although
Moody's indicates that municipal securities rated "Baa" have speculative
characteristics. The Fund also may invest in unrated securities that Norwest
believes are comparable in quality to rated securities in which the Fund may
invest. A description of the rating categories of certain NRSROs is contained in
the SAI.
 
MINNESOTA TAX-FREE FUND
 
INVESTMENT OBJECTIVE. The investment objective of Minnesota Tax-Free Fund is to
provide shareholders with a high level of current income exempt from both
federal and Minnesota state income taxes (including the alternative minimum tax)
without assuming undue risk. Shares of the Fund are offered only to residents of
the State of Minnesota. There can be no assurance that the Fund will achieve its
investment objective.
 
INVESTMENT POLICIES. Substantially all the Fund's total assets normally will be
invested in investment grade municipal securities, which are debt obligations
issued by the state of Minnesota and its political subdivisions, duly
constituted authorities and corporations ("municipal securities"). Municipal
securities also include the securities issued by the various territories and
possessions of the United States, such as Puerto Rico. In order to respond to
business and financial conditions, the Fund may invest up to 20% of its assets
in instruments on which the interest is subject to taxation. (See "Additional
Investment Policies - Temporary Defensive Position;" "- Taxable Investments" and
"Dividends and Tax Matters.") As a fundamental policy, except during periods
when the Fund assumes a temporary defensive position, the Fund will invest at
least 80% of its total assets in securities exempt from both federal and
Minnesota state income taxes (including the federal alternative minimum tax).
 
The yields of Minnesota municipal securities depend on, among other things,
conditions in the Minnesota municipal bond market and fixed income markets
generally, the maturity of the obligation, the rating of the issue and the size
of a particular offering. In some cases, Minnesota issues may have yields that
are slightly less than the yields of municipal obligations of issuers located in
other states because of the favorable Minnesota state tax exemption on
 
                                       16
<PAGE>
- ----
- ----
Minnesota issues. (See "Dividends and Tax Matters - Taxes - Minnesota Tax-Free
Fund" for a description of certain tax matters that may effect the Fund and its
shareholders.)
 
There are no restrictions on the Fund's average portfolio maturity, but the
average dollar-weighted maturity is currently expected to be greater than 10
years. Average portfolio maturity may reach or exceed 20 years in the future.
Depending on market conditions, however, the average dollar-weighted maturity
could be higher or lower. In general, the longer the maturity of a municipal
security, the higher the rate of interest it pays. However, a longer average
maturity is generally associated with a higher level of volatility in the market
value of a municipal security. As the Fund's objective is to provide high
current income, the Fund invests in municipal securities with an emphasis on
income rather than stability of the Fund's net asset value.
 
Normally, at least 75% of the Fund's assets will be invested in municipal
securities that are rated within the top four grades by an NRSRO at the time of
purchase. For example, for municipal bonds, these grades are "Aaa," "Aa," "A"
and "Baa" in the case of Moody's Investors Service ("Moody's") and "AAA," "AA,"
"A" and "BBB" in the case of Standard & Poor's ("S&P") and Fitch Investors
Service, L.P. ("Fitch"). These securities are generally considered to be
investment grade securities, although Moody's indicates that municipal
securities rated "Baa" have speculative characteristics. The Fund also may
invest in unrated securities that Norwest believes are comparable in quality to
rated securities in which the Fund may invest. A description of the rating
categories of certain NRSROs is contained in the SAI.
NON-INVESTMENT GRADE SECURITIES. Minnesota Tax-Free Fund may invest up to 25% of
its total assets in municipal bonds rated in the fifth highest rating category
of an NRSRO ("Ba" by Moody's or "BB" by S&P or Fitch), or which are unrated and
judged by Norwest to be of comparable quality to securities rated in the fifth
highest category. Such securities (commonly referred to as "junk bonds") are not
considered to be investment grade and have speculative or predominantly
speculative characteristics. Non-investment grade, high risk securities provide
poor protection for payment of principal and interest but may have greater
potential for capital appreciation than do higher quality securities. These
lower rated securities involve greater risk of default or price changes due to
changes in the issuer's creditworthiness than do higher quality securities. The
market for these securities may be thinner and less active than that for higher
quality securities, which may affect the price at which the lower rated
securities can be sold. In addition, the market prices of lower rated securities
may fluctuate more than the market prices of higher quality securities and may
decline significantly in periods of general economic difficulty or rising
interest rates.
 
                                                                  17
<PAGE>
- ----
- ----
 
During the fiscal year ended May 31, 1997, the Fund had 88.8% of its average
annual assets in municipal securities rated by Moody's or S&P and 11.2% of its
average annual assets in unrated investments, including cash and short-term cash
equivalents which are typically unrated. During that year, the Fund had the
following percentages of its average annual net assets invested in rated
securities: "Aaa"/"AAA" - 36.3%, "Aa"/"AA" - 38.4%, "A"/"A" - 9.8%, "Baa"/"BBB"
- - 4.3% and "Ba"/"BB" and below - 0%. For this purpose, securities with different
ratings from Moody's and S&P were assigned the higher rating. This information
reflects the average composition of the Fund's assets for the Fund's last fiscal
year and is not necessarily representative of the Fund as of the current fiscal
year or any other time.
 
INVESTMENT CONSIDERATIONS
AND RISK FACTORS
 
GEOGRAPHIC CONCENTRATION. Because Colorado Tax-Free Fund and Minnesota Tax-Free
Fund invest principally in municipal securities issued by issuers within a
particular state and the state's political subdivisions, those Funds are more
susceptible to factors adversely affecting issuers of those municipal securities
than would be a more geographically diverse municipal securities portfolio.
Tax-Free Income Fund will be subject to similar risks to the extent it
concentrates its investments in a particular jurisdiction. These risks are
linked to the financial condition of the state and its political subdivisions.
To the extent state or local governmental entities are unable to meet their
financial obligations, the income derived by a Fund, its ability to preserve or
realize appreciation of its portfolio assets or its liquidity could be impaired.
 
To the extent a Fund's investments are primarily concentrated in issuers located
in a particular state, the value of the Fund's shares may be especially affected
by factors pertaining to that state's economy and other factors specifically
affecting the ability of issuers of that state to meet their obligations. As a
result, the value of the Fund's assets may fluctuate more widely than the value
of shares of a portfolio investing in securities relating to a number of
different states. The ability of state, county or local governments and
quasi-government agencies to meet their obligations will depend primarily on the
availability of tax and other revenues to those governments and on their fiscal
conditions generally. The amounts of tax and other revenues available to
governmental issuers may be affected from time to time by economic, political
and demographic conditions within their state. In addition, constitutional or
statutory restrictions may limit a government's power to raise revenues or
increase taxes. The availability of federal, state and local aid to governmental
issuers may also affect their ability to meet obligations. Payments of principal
of and interest on private activity securities will depend
 
                                       18
<PAGE>
- ----
- ----
on the economic condition of the facility or specific revenue source from whose
revenues the payments will be made, which in turn could be affected by economic,
political or demographic conditions in the state.
 
The Colorado constitution restricts the ability of the state and local
governments to increase taxes, revenues, debt and spending. In particular, prior
voter approval is now required to impose any new tax or tax rate increase or to
issue any "multiple-fiscal year" debt and revenues collected in excess of
certain limits must be refunded unless voters authorize their retention. The
future impact on the financial operations and obligations of the state and local
governments cannot be determined at this time. Norwest will continue to monitor
the situation closely and will, if necessary, seek the advice of counsel
concerning its effect on instruments being considered for purchase by the Fund.
A further discussion of potential risks of investment in Colorado municipal
securities is contained in the SAI.
 
RELATED ISSUERS. Some municipal securities are related in such a way that an
economic, business or political development affecting one municipal security
would have a similar effect on another municipal security. For example, the
repayment of different obligations may depend on similar types of projects. No
Fund will invest more than 25% of its total assets in securities that are so
related or invest more than 25% of its total assets in a single type of revenue
bond (e.g., electric revenue, housing revenue, etc.) Similarly, under normal
circumstances, Tax-Free Income Fund will not invest more than 25% of its total
assets in issuers located in the same state.
 
DIVERSIFICATION MATTERS. Each of Colorado Tax-Free Fund and Minnesota Tax-Free
Fund is non-diversified, which means that it has greater latitude than a
diversified fund with respect to the investment of its assets in the securities
of a relatively few municipal issuers. As non-diversified portfolios, these
Funds may present greater risks than a diversified fund. However, each Fund
intends to comply with applicable diversification requirements of the Internal
Revenue Code. These requirements provide that, as of the last day of each fiscal
quarter, with respect to 50% of its assets, a Fund may not: (1) own the
securities of a single issuer with a value of more than 5% of the Fund's total
assets; or (2) own more than 10% of the outstanding voting securities of a
single issuer. Tax-Free Income Fund is diversified and, therefore, as a
fundamental policy, with respect to 75% of its assets, may not purchase a
security if, as a result, more than 5% of the Fund's total assets would be
invested in the securities of a single issuer. These limits do not apply to U.S.
Government securities and the securities of investment companies. Each Fund
reserves the right to invest up to 100% of its investable assets in one or more
other investment companies.
 
Except for investment in U.S. Government Securities, no more than 25% of the
total assets of Colorado Tax-Free Fund, and no more than 20% of the
 
                                                                  19
<PAGE>
- ----
- ----
total assets of Minnesota Tax-Free Fund, may be invested in securities of any
one issuer. These limitations do not apply to securities of an issuer payable
solely from the proceeds of escrowed U.S. Government Securities.
 
The "issuer" of securities is deemed to be the entity whose assets and revenues
secure the securities, whether that entity is a governmental entity (so long as
its revenues and assets are separate from the government which created it) or a
non-governmental user of facilities financed through industrial development
bonds issued by or on behalf of a public authority or entity.
 
ADDITIONAL INVESTMENT POLICIES
AND RISK CONSIDERATIONS
 
Each Fund's investment objective and all investment policies of the Funds that
are designated as fundamental may not be changed without approval of the holders
of a majority of the Fund's outstanding voting securities. A majority of a
Fund's outstanding voting securities means the lesser of 67% of the shares
present or represented at a shareholders' meeting at which the holders of more
than 50% of the outstanding shares are present or represented or more than 50%
of the outstanding shares. Except as otherwise indicated, investment policies of
the Funds are not fundamental and may be changed by the Board of Trustees of the
Trust (the "Board") without shareholder approval. A further description of the
Funds' investment policies, including additional fundamental policies, is
contained in the SAI.
 
No Fund may invest more than 15% of its net assets in illiquid securities,
including repurchase agreements not entitling the Fund to payment within seven
days. As used herein, the term U.S. Government Securities means obligations
issued or guaranteed as to principal and interest by the U.S. Government, its
agencies or instrumentalities.
 
As part of its regular banking operations, Norwest Bank may make loans to public
companies. Thus, it may be possible, from time to time, for a Fund to hold or
acquire the securities of issuers which are also lending clients of Norwest
Bank. A lending relationship will not be a factor in the selection of portfolio
securities for a Fund.
 
BORROWING. As a fundamental policy, each Fund may borrow money from banks or by
entering into reverse repurchase agreements and will limit borrowings to amounts
not in excess of 33 1/3% of the value of the Fund's total assets. Borrowing for
other than temporary or emergency purposes or meeting redemption requests may
not exceed 5% of the value of any Fund's assets. Each Fund may enter reverse
repurchase agreements, transactions in which a Fund sells a security and
simultaneously commits to repurchase that security from the buyer at an agreed
upon price on an agreed upon future date.
 
                                       20
<PAGE>
- ----
- ----
 
MUNICIPAL SECURITIES. The municipal securities in which the Funds may invest
include municipal bonds, notes and leases. Municipal securities may be
zero-coupon securities. Yields on municipal securities are dependent on a
variety of factors, including the general conditions of the municipal security
markets and the fixed income markets in general, the size of a particular
offering, the maturity of the obligation and the rating of the issue. The
achievement of a Fund's investment objective is dependent in part on the
continuing ability of the issuers of municipal securities in which the Fund
invests to meet their obligations for the payment of principal and interest when
due.
 
The market value of the interest-bearing debt securities, including municipal
securities, held by the Funds will be affected by changes in interest rates.
There is normally an inverse relationship between the market value of securities
sensitive to prevailing interest rates and actual changes in interest rates;
e.g., a decline in interest rates produces an increase in market value, while an
increase in rates produces a decrease in market value. Moreover, the longer the
remaining maturity of a security, the greater will be the affect of interest
rate changes on the market value of that security. In addition, fixed income
investments held by the Funds are subject to "credit risk." Changes in the
ability of an issuer to make payments of interest and principal and the market's
perception of an issuer's creditworthiness will affect the market value of the
debt securities of that issuer. Obligations of issuers of debt securities,
including municipal issuers, are also subject to the provisions of bankruptcy,
insolvency and other laws affecting the rights and remedies of creditors which
may restrict the ability of any issuer to pay, when due, the principal of and
interest on its debt securities. The possibility exists that, the ability of any
issuer to pay, when due, the principal of and interest on its debt securities
may become impaired.
 
The Funds may retain securities whose rating has been lowered below the lowest
permissible rating category or, in the case of an unrated security, determined
by Norwest to be of comparable quality, if Norwest determines that retaining
such security is in the best interests of the Fund. Because a downgrade often
results in a reduction in the market price of the security, sale of a downgraded
security may result in a loss.
 
MUNICIPAL BONDS. Municipal bonds can be classified as either "general
obligation" bonds or "revenue" bonds. General obligation bonds are secured by a
municipality's pledge of its full faith, credit and taxing power for the payment
of principal and interest. Revenue bonds are usually payable only from the
revenues derived from a particular facility or class of facilities or, in some
cases, from the proceeds of a special excise or other tax, but not from general
tax revenues.
 
                                                                  21
<PAGE>
- ----
- ----
 
Municipal bonds also include industrial development bonds and private activity
bonds, which in most cases are revenue bonds and generally are not secured by a
pledge of the credit of the municipality. The payment of the principal and
interest on such bonds is dependent solely on the ability of an initial or
subsequent user of the facilities financed by the bonds to meet its financial
obligations and the pledge, if any, of real and personal property so financed as
security for such payment.
 
MUNICIPAL NOTES AND LEASES. Municipal notes, which may be either "general
obligation" or "revenue" securities, are intended to fulfill the short-term
capital needs of the issuer and generally have original maturities not exceeding
one year. They include tax anticipation notes, revenue anticipation notes (which
generally are issued in anticipation of various seasonal revenues), bond
anticipation notes, construction loan notes and tax-exempt commercial paper.
Municipal leases, which may take the form of a lease or an installment purchase
or conditional sale contract, are issued by state and local governments and
authorities to acquire a wide variety of equipment and facilities such as fire
and sanitation vehicles, telecommunications equipment and other capital assets.
 
PARTICIPATION INTERESTS. The Funds may purchase participation interests in
municipal securities that are held by banks or other financial institutions.
Participation interests usually carry a demand feature backed by a letter of
credit or guarantee of the bank or other financial institution permitting the
holder to tender them back to the bank or other financial institution. Prior to
purchasing any participation interest, each Fund will obtain appropriate
assurances from counsel that the interest earned by the Fund from the
obligations in which it holds participation interests is exempt from federal
and, in the case of Colorado Tax-Free Fund and Minnesota Tax-Free Fund,
applicable state income tax.
 
STAND-BY COMMITMENTS. The Funds may purchase municipal securities together with
the right to resell them to the seller or a third party at an agreed-upon price
or yield within specified periods prior to their maturity dates. Such a right to
resell is commonly known as a "stand-by commitment," and the aggregate price
which a Fund pays for securities with a stand-by commitment may be higher than
the price which otherwise would be paid. The primary purpose of this practice is
to permit a Fund to be as fully invested as practicable in municipal securities
while preserving the necessary flexibility and liquidity to meet unanticipated
redemptions. In this regard, a Fund acquires stand-by commitments solely to
facilitate portfolio liquidity and does not exercise its rights thereunder for
trading purposes. Stand-by commitments involve certain expenses and risks,
including the inability of the issuer of the commitment to pay for the
securities at the time the commitment is exercised, non-marketability of the
commitment, and differences between the maturity of the underlying security and
the maturity of the commitment.
 
                                       22
<PAGE>
- ----
- ----
The Funds' policy is to enter into stand-by commitment transactions only with
municipal securities dealers which, in the view of Norwest, present minimal
credit risks.
 
PUTS ON MUNICIPAL SECURITIES. The Funds may acquire "puts" on municipal
securities they purchase. A put gives the Fund the right to sell the municipal
security at a specified price at any time on or before a specified date. The
Fund will acquire puts only to enhance liquidity, shorten the maturity of the
related municipal security or permit the Fund to invest its funds at more
favorable rates. Generally, the Fund will buy a municipal security that is
accompanied by a put only if the put is available at no extra cost. In some
cases, however, the Fund may pay an extra amount to acquire a put, either in
connection with the purchase of the related municipal security or separately
from the purchase of the security. Puts involve the same risks discussed above
with respect to stand-by commitments.
 
VARIABLE AND FLOATING RATE SECURITIES. The securities in which the Funds invest
(including mortgage-related securities) may have variable or floating rates of
interest. These securities pay interest at rates that are adjusted periodically
according to a specified formula, usually with reference to some interest rate
index or market interest rate (the "underlying index"). The interest paid on
these securities is a function primarily of the underlying index upon which the
interest rate adjustments are based. Such adjustments minimize changes in the
market value of the obligation and, accordingly, enhance the ability of the Fund
to maintain a stable net asset value. Similar to fixed rate debt instruments,
variable and floating rate instruments are subject to changes in value based on
changes in market interest rates or changes in the issuer's creditworthiness.
The rate of interest on securities purchased by a Fund may be tied to Treasury
or other government securities or indices on those securities as well as any
other rate of interest or index. Certain variable rate securities (including
mortgage-related securities) pay interest at a rate that varies inversely to
prevailing short-term interest rates (sometimes referred to as inverse
floaters). For instance, upon reset the interest rate payable on a security may
go down when the underlying index has risen. During times when short-term
interest rates are relatively low as compared to long-term interest rates a Fund
may attempt to enhance its yield by purchasing inverse floaters. Certain inverse
floaters may have an interest rate reset mechanism that multiplies the effects
of changes in the underlying index. This form of leverage may have the effect of
increasing the volatility of the security's market value while increasing the
security's, and thus the Fund's, yield.
 
There may not be an active secondary market for certain floating or variable
rate instruments (particularly inverse floaters and similar instruments) which
could make it difficult for a Fund to dispose of the instrument during periods
that the Fund is not entitled to exercise any demand rights (such as puts) it
may have. A Fund could, for this or other reasons, suffer a loss with respect
 
                                                                  23
<PAGE>
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- ----
to an instrument. Norwest monitors the liquidity of each Fund's investment in
variable and floating rate instruments, but there can be no guarantee that an
active secondary market will exist.
 
ZERO-COUPON SECURITIES. Zero-coupon securities are sold at original issue
discount and pay no interest to holders prior to maturity, but a Fund holding a
zero-coupon security must include the original issue discount of the security as
income. Zero-coupon securities may be subject to greater fluctuation of market
value than the other securities in which the Fund's may invest. The Funds
distribute all of their net investment income, and may have to sell portfolio
securities to distribute imputed income, which may occur at a time when Norwest
would not have chosen to sell such securities and which may result in a taxable
gain or loss.
 
REPURCHASE AGREEMENTS AND LENDING OF PORTFOLIO SECURITIES. Each Fund may seek
additional income by entering into repurchase agreements or by lending
securities from its portfolio to brokers, dealers and other financial
institutions. These investments may entail certain risks not associated with
direct investments in securities. For instance, in the event that bankruptcy or
similar proceedings were commenced against a counterparty in these transactions
or a counterparty defaulted on its obligations, a Fund might suffer a loss.
 
Repurchase agreements are transactions in which a Fund purchases a security and
simultaneously commits to resell that security to the seller at an agreed-upon
price on an agreed-upon future date, normally one to seven days later. The
resale price reflects a market rate of interest that is not related to the
coupon rate or maturity of the purchased security. When a Fund lends a security
it receives interest from the borrower or from investing cash collateral. The
Trust maintains possession of the purchased securities and any underlying
collateral in these transactions, the total market value of which on a
continuous basis is at least equal to the repurchase price or value of
securities loaned, plus accrued interest. The Funds may pay fees to arrange
securities loans and each Fund will, as a fundamental policy, limit securities
lending to not more than 33 1/3% of the value of its total assets.
 
WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS. Each Fund may purchase
securities offered on a "when-issued" basis and may purchase securities on a
"forward commitment" basis. When such transactions are negotiated, the price is
fixed at the time the commitment is made, but delivery and payment for the
securities take place at a later date. Normally, the settlement date occurs
within three months after the transaction, but delayed settlements beyond three
months may be negotiated.
 
During the period between a commitment and settlement, no payment is made for
the securities purchased and, thus, no interest accrues to the Fund. At the time
a Fund makes a commitment to purchase securities in this
 
                                       24
<PAGE>
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- ----
manner, however, the Fund immediately assumes the risk of ownership, including
price fluctuation. Failure by the other party to deliver or pay for a security
purchased or sold by the Fund may result in a loss or a missed opportunity to
make an alternative investment. Any significant commitment of a Fund's assets
committed to the purchase of securities on a when-issued or forward commitment
basis may increase the volatility of its net asset value.
 
The use of when-issued transactions and forward commitments enables a Fund to
hedge against anticipated changes in interest rates and prices. If Norwest were
to forecast incorrectly the direction of interest rate movements, however, a
Fund might be required to complete when-issued or forward transactions at prices
inferior to the current market values. The Funds enter into when-issued and
forward commitments only with the intention of actually receiving the
securities, but a Fund may sell the securities before the settlement date if
deemed advisable. If a Fund chooses to dispose of the right to acquire a
when-issued security prior to its acquisition or to dispose of its right to
deliver or receive against a forward commitment, it can incur a gain or loss.
When-issued securities may include bonds purchased on a "when, as and if issued"
basis under which the issuance of the securities depends upon the occurrence of
a subsequent event.
 
TEMPORARY DEFENSIVE POSITION. When business or financial conditions warrant,
each Fund may assume a temporary defensive position and invest without limit in
cash or prime quality cash equivalents, including: (1) short-term U.S.
Government Securities; (2) certificates of deposit, bankers' acceptances and
interest-bearing savings deposits of commercial banks doing business in the
United States; (3) commercial paper; (4) repurchase agreements; and (5) shares
of "money market funds" registered under the Investment Company Act of 1940 (the
"1940 Act") within the limits specified therein. Prime quality instruments are
those that are rated in one of the two highest short-term rating categories by
an NRSRO or, if not rated, determined by Norwest to be of comparable quality.
During periods when and to the extent that the Fund has assumed a temporary
defensive position, it may not be pursuing its investment objective. Apart from
temporary defensive purposes, a Fund may at any time invest a portion of its
assets in cash and cash equivalents as described above. When a Fund assumes a
temporary defensive position, it is likely that shareholders will be subject to
federal and applicable state income taxes on a greater portion of their income
dividends received from the Fund.
 
TAXABLE INVESTMENTS. Apart from temporary defensive purposes, each Fund may
invest up to 20% of the value of its total assets in cash equivalents the
interest on which is not exempt from federal income tax or is treated as a
preference item for purposes of the federal alternative minimum tax. For more
information regarding the alternative minimum tax, see "Dividends and Tax
Matters." In addition, the Funds may hold a portion of their assets in
 
                                                                  25
<PAGE>
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- ----
cash and cash-equivalents pending investment in municipal securities, to meet
requests for redemptions or to assume a temporary defensive position. With
respect to Tax-Free Income Fund, these securities include debt securities of
corporate issuers meeting the Fund's investment quality standards described
above and bonds or notes issued by or on behalf of a municipality, the interest
on which is an item of tax preference for purposes of the federal alternative
minimum tax on individuals.
 
PORTFOLIO TRANSACTIONS. The frequency of portfolio transactions of each Fund
(the portfolio turnover rate) will vary from year to year depending on many
factors. From time to time a Fund may engage in active short-term trading to
take advantage of price movements affecting individual issues, groups of issues
or markets. The Funds' portfolio turnover is reported under "Financial
Highlights." An annual portfolio turnover rate of 100% would occur if all the
securities in a Fund were replaced once in a period of one year. Higher
portfolio turnover rates may result in increased short-term capital gains, which
are not tax-exempt, and losses. It is each Fund's policy to obtain best net
results in effecting portfolio transactions. Norwest may effect transactions for
the Funds through brokers who sell Fund shares. The Funds have no obligation to
deal with any specific broker or dealer in the execution of portfolio
transactions.
 
                                       26
<PAGE>
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- ----
 
                                                                  4.  MANAGEMENT
 
The business of the Trust is managed under the direction of the Board of
Trustees (the "Board"). The Board formulates the general policies of the Funds
and meets periodically to review the results of the Funds, monitor investment
activities and practices and discuss other matters affecting the Funds and the
Trust. The Board consists of eight persons.
 
INVESTMENT ADVISORY SERVICES
 
NORWEST INVESTMENT MANAGEMENT. Subject to the general supervision of the Board,
Norwest makes investment decisions for the Funds and continuously reviews,
supervises and administers each Fund's investment program. Norwest, which is
located at Norwest Center, Sixth Street and Marquette, Minneapolis, Minnesota
55479, is an indirect subsidiary of Norwest Corporation, a multi-bank holding
company that was incorporated under the laws of Delaware in 1929. As of June 30,
1997, Norwest Corporation had assets of $83.6 billion, which made it the 11th
largest bank holding company in the United States. As of June 30, 1997, Norwest
and its affiliates managed assets with a value of approximately $52.9 billion.
 
For its services, Norwest receives an advisory fee at an annual rate of 0.50% of
the average daily net assets of Tax-Free Income Fund and, with respect to each
of the Colorado Tax-Free Fund and Minnesota Tax-Free Fund, at an annual rate of
0.50% of the first $300 million of the Fund's average daily net assets, 0.46% of
the next $400 million of the Fund's average daily net assets and 0.42% of the
Fund's remaining average daily net assets.
 
PORTFOLIO MANAGERS. Many persons on the advisory staff of Norwest contribute to
the investment services provided to the Funds. The following persons, however,
are primarily responsible for day-to-day management and, unless otherwise noted,
have been since the inception of the Fund. For periods prior to June 1, 1997,
all persons served in their current positions with Norwest Bank. Prior to that
date Norwest Bank was each Fund's investment adviser. In addition to their
responsibilities as listed below, each of the portfolio managers may perform
portfolio management and other duties for Norwest Bank.
 
     TAX-FREE INCOME FUND and COLORADO TAX-FREE FUND Mr. William T. Jackson,
     CFA. Mr. Jackson has been a Vice President of Norwest since 1993. Prior
     thereto, Mr. Jackson was a Senior Vice President and Institutional Sales
     Manager with Norwest Investment Services from 1992 to 1993; a Vice
     President and Municipal Bond Trading Manager from 1991 to 1992; and a Vice
     President and Municipal Bond Trader with Kemper Securities, Inc., from 1984
     to 1991.
 
                                                                  27
<PAGE>
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     MINNESOTA TAX-FREE FUND Ms. Patricia D. Hovanetz, CFA. Ms. Hovanetz, a Vice
     President of Norwest, has been associated with Norwest for more than 25
     years in various capacities related to municipal bond investments. She has
     been a municipal bond fund portfolio manager since 1988 and has served as
     portfolio manager of the Fund since 1991.
 
MANAGEMENT, ADMINISTRATION AND
DISTRIBUTION SERVICES
 
As manager, Forum supervises the overall management of the Trust (including the
Trust's receipt of services for which the Trust is obligated to pay) other than
investment advisory services. In this capacity Forum provides the Trust with
general office facilities, provides persons satisfactory to the Board to serve
as officers of the Trust and oversees the performance of administrative and
professional services rendered to the Funds by others. FAS is responsible for
performing certain administrative services necessary for the Trust's operations
with respect to each Fund including: (1) preparing and printing updates of the
Trust's registration statement and prospectuses to its shareholders, the SEC and
state securities administrators; (2) preparing proxy and information statements
and any other communications to shareholders; (3) monitoring the sales of shares
and ensuring that such shares are properly and duly registered with the SEC and
applicable state securities administrators; and (4) supervising the declaration
of dividends and distributions to shareholders.
 
As of June 30, 1997, Forum and FAS provided management and administrative
services to registered investment companies and collective investment funds with
assets of approximately $25.5 billion. Forum is a member of the National
Association of Securities Dealers, Inc. For their services with respect to each
Fund, Forum and FAS each receives a fee, at an annual rate of 0.05% of the
Fund's average daily net assets.
 
Pursuant to a separate agreement, Forum Accounting Services, LLC ("Forum
Accounting") provides portfolio accounting services to each Fund and to each
Core Portfolio. Forum, FAS, and Forum Accounting are members of the Forum
Financial Group of companies which together provide a full range of services to
the investment company and financial services industry. As of June 1, 1997,
Forum, FAS and Forum Accounting were controlled by John Y. Keffer, President and
Chairman of the Trust.
 
Forum also acts as the distributor of the Shares. As the Funds' distributor,
Forum pays a broker-dealers' reallowance on A Shares and a sales commission on B
Shares to broker-dealers who sell shares of the Funds. Normally,
 
                                       28
<PAGE>
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- ----
Forum will make payments to broker-dealers as discussed under "Characteristics
of The Shares." From its own resources, Forum may pay additional fees to
broker-dealers or other persons for distribution or other services related to
the Funds. For further information about the Funds' distribution plan, including
the fees payable thereunder, see "Characteristics of The Shares."
 
SHAREHOLDER SERVICING AND
CUSTODY
 
Norwest Bank serves as transfer agent and dividend disbursing agent for the
Trust (in this capacity, the "Transfer Agent"). The Transfer Agent maintains an
account for each shareholder of the Trust (unless such accounts are maintained
by sub-transfer agents or processing agents), performs other transfer agency
functions and acts as dividend disbursing agent for the Trust. The Transfer
Agent is permitted to subcontract any or all of its functions with respect to
all or any portion of the Trust's shareholders to one or more qualified
sub-transfer agents or processing agents, which may be affiliates of the
Transfer Agent. Sub-transfer agents and processing agents may be "Processing
Organizations" as described under "How to Buy Shares - Purchase Procedures." The
Transfer Agent is permitted to compensate those agents for their services;
however, that compensation may not increase the aggregate amount of payments by
the Trust to the Transfer Agent. For its services, the Transfer Agent receives a
fee a fee with respect to each Fund at an annual rate of 0.25% of each Fund's
average daily net assets attributable to each class of the Fund.
Norwest Bank also serves as each Fund's custodian. For its custodial services,
Norwest Bank receives a fee with respect to each Fund at an annual rate of:
0.02% of the first $100 million of the Fund's average daily net assets, 0.015%
of the next $100 million of the Fund's average daily net assets and 0.01% of the
Fund's remaining average daily net assets.
 
EXPENSES OF THE FUNDS
 
Subject to the obligation of Norwest to reimburse the Trust for certain expenses
of the Funds, the Trust has confirmed its obligation to pay all of its expenses.
The Funds' expenses include Trust expenses attributable to the Funds, which are
allocated to each Fund, and expenses not specifically attributable to the Funds,
which are allocated among the Funds and all other funds of the Trust in
proportion to their average net assets. Each service provider to a Fund may
elect to waive (or continue to waive) all or a portion of their fees. Any such
waivers will have the effect of increasing a Fund's performance for the period
during which the waiver is in effect. Fee waivers are voluntary and may be
reduced or eliminated at any time.
 
                                                                  29
<PAGE>
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Each service provider to the Trust or their agents and affiliates may also act
in various capacities for, and receive compensation from, their customers who
are shareholders of a Fund. Under agreements with those customers, these
entities may elect to credit against the fees payable to them by their customers
or to rebate to customers all or a portion of any fee received from the Trust
with respect to assets of those customers invested in a Fund.
 
                                       30
<PAGE>
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                                                      5.  CHOOSING A SHARE CLASS
 
Investors should compare sales charges and fees before selecting a particular
class of shares. Investors should consider whether, during the anticipated life
of their investment in a Fund, the accumulated distribution services fee and
maintenance fee and contingent deferred sales charges on B Shares prior to
conversion would be less than the initial sales charge on A Shares purchased at
the same time and whether that differential would be offset by the higher yield
of A Shares. A summary of the charges applicable to shares of each Fund is
listed under "Prospectus Summary - Expense Information." Sales personnel of
broker-dealers and other financial institutions selling a Fund's shares may
receive differing compensation for selling A Shares and B Shares.
 
Because initial sales charges are deducted at the time of purchase, investors
purchasing a Fund's A Shares receive fewer shares than if the sales charge were
not deducted and, accordingly, do not have the entire purchase price invested.
Investors not qualifying for reduced initial sales charges who expect to
maintain their investment for an extended period of time should consider
whether, in light of the initial sales charge and its effect on the amount of
the purchase price invested, purchases of A Shares are more or less advantageous
than purchases of B Shares with their associated accumulated continuing
distribution and maintenance charges. For example, based on estimated current
fees and expenses, an investor subject to the 4.0% initial sales charge who
elects to reinvest all dividends would have to hold the shareholder's investment
approximately five years for the B Shares' distribution services fee and
maintenance fee to exceed the initial sales charge. The foregoing example does
not take into account the time value of money, fluctuations in net asset value
or the effects of different performance assumptions.
 
                                                                  31
<PAGE>
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A SHARES
 
The public offering price of A Shares is their next-determined net asset value
plus an initial sales charge assessed as follows (no sales charge is assessed on
the reinvestment of dividends or distributions):
 
<TABLE>
<CAPTION>
 
                                                              Broker-
                                                              Dealers'
                                   Sales Charge            Reallowance As
                                As a Percentage of          a Percentage
                         ................................   of Offering
Amount of Purchase       Offering Price  Net Asset Value*      Price
 
- -------------------------------------------------------------------------
<S>                      <C>             <C>               <C>
Less than $50,000......         4.00%            4.17%            3.50%
$50,000 to $99,999.....         3.50%            3.63%            3.00%
$100,000 to $249,000...         3.00%            3.09%            2.50%
$250,000 to $499,999...         2.50%            2.56%            2.25%
$500,000 to $999,000...         2.00%            2.04%            1.75%
$1,000,000 to
 $2,499,999............         0.00%            0.00%            0.75%
$2,500,000 to
 $4,999,999............         0.00%            0.00%            0.50%
Over $5,000,000........         0.00%            0.00%            0.25%
 
* Rounded to the nearest one-hundredth percent
</TABLE>
 
Forum may pay a broker-dealers' reallowance to selected broker-dealers
purchasing shares as principal or agent, which may include banks, bank
affiliates and Processing Organizations. Normally, Forum will reallow discounts
to selected broker-dealers in the amounts indicated in the table above. In
addition, Forum may elect to reallow the entire sales charge to selected
broker-dealers for all sales with respect to which orders are placed with Forum.
The broker-dealers' reallowance may be changed from time to time. Forum may make
additional payments (out of its own resources) to selected broker-dealers of up
to 0.75% of the value of Fund shares purchased at net asset value.
 
In addition, from time to time and at its own expense, Forum may provide
compensation, including financial assistance, to dealers in connection with
conferences, sales or training programs for their employees, seminars for the
public, advertising campaigns or other dealer-sponsored special events.
Compensation may include: (1) the provision of travel arrangements and lodging;
(2) tickets for entertainment events; and (3) merchandise.
 
In some instances, this compensation may be made available only to certain
dealers or other financial intermediaries who have sold or are expected to sell
significant amounts of shares of the Funds or who charge an asset based fee
(whether or not they have a fiduciary relationship with their clients).
 
                                       32
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No sales charge is assessed on purchases: (1) by any bank, trust company or
other institution acting on behalf of its fiduciary customer accounts or any
other account maintained by its trust department (including a pension, profit
sharing or other employee benefit trust created pursuant to a plan qualified
under Section 401 of the Internal Revenue Code of 1986, as amended); (2) by
trustees and officers of the Trust; directors, officers and full-time employees
of Forum, of Norwest Corporation or of any of their affiliates; the spouse,
direct ancestor or direct descendant (collectively, "relatives") of any such
person; any trust or individual retirement account or self-employed retirement
plan for the benefit of any such person or relative; or the estate of any such
person or relative; (3) by any registered investment adviser with whom Forum has
entered into a share purchase agreement and which is acting on behalf of its
fiduciary customer accounts; and (4) of A Shares of a Fund made through the
Directed Dividend Option from a fund of the Trust that charges a front-end sales
charge. (See, "Dividends and Tax Matters".) Shares sold without a sales charge
may not be resold except to the Funds and share purchases must be made for
investment purposes.
 
REINSTATEMENT PRIVILEGE. An investor who has redeemed A Shares of a Fund may,
within 60 days following the redemption, purchase without a sales charge A
Shares in an amount up to the amount of the redemption. Investors who desire to
exercise this "Reinstatement Privilege" should contact the Trust for further
information.
 
INVESTORS IN OTHER FUND FAMILIES. No sales charge is assessed on purchases of A
Shares of a Fund with the proceeds of a redemption at net asset value, within
the preceding 60 days, of shares of a mutual fund that imposed on the redeemed
shares at the time of their purchase a sales charge equal to or greater than
that applicable to the A Shares of that Fund. Investors should contact the Trust
for further information and to obtain the necessary forms.
 
REDUCED INITIAL SALES CHARGES. To qualify for a reduced sales charge, an
investor or the investor's Processing Organization must notify the Transfer
Agent at the time of purchase of the investor's intention to qualify and must
provide the Transfer Agent with sufficient information to verify that the
purchase qualifies for the reduced sales charge. Reduced sales charges may be
modified or terminated at any time and are subject to confirmation of an
investor's holdings. Further information about reduced sales charges is
contained in the SAI.
 
CUMULATIVE QUANTITY DISCOUNT (RIGHT OF ACCUMULATION). An investor's purchase of
additional A Shares of a Fund may qualify for rights of accumulation ("ROA")
under which the applicable sales charge will be based on the total of the
investor's current purchase and the net asset value (at the end of the previous
Fund Business Day) of all A Shares of that Fund held by the investor. For
example, if an investor owned A Shares of a Fund worth $500,000 at the
 
                                                                  33
<PAGE>
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then current net asset value and purchased A Shares of that Fund worth an
additional $50,000, the sales charge for the $50,000 purchase would be at the
2.0% rate applicable to a $550,000 purchase, rather than at the 3.5% rate
applicable to a $50,000 purchase.
 
In addition, an investor in a Fund that has previously purchased A Shares of any
other fund of the Trust that is sold with a sales charge equal to or greater
than the sales charge imposed on the A Shares of the Fund ("Eligible Fund") may
also qualify for ROA and may aggregate existing investments in A Shares of
Eligible Funds with current purchases of A Shares of the Fund to determine the
applicable sales charge. In addition, purchases of A Shares of a Fund by an
investor and the investor's spouse, direct ancestor or direct descendant may be
combined for purposes of ROA.
 
STATEMENT OF INTENTION. A Shares investors may also obtain reduced sales charges
based on cumulative purchases by means of a written Statement of Intention,
expressing the investor's intention to invest $50,000 or more in A Shares of a
Fund within a period of 13 months. Each purchase of shares under a Statement of
Intention will be made at net asset value plus the sales charge applicable at
the time of the purchase to a single transaction of the dollar amount indicated
in the Statement.
 
Investors wishing to enter into a Statement of Intention in conjunction with
their initial investment in shares of a Fund should complete the appropriate
portion to the account application form. Current Fund shareholders can obtain a
Statement of Intention form by contacting the Transfer Agent.
 
CONTINGENT DEFERRED SALES CHARGE. A Shares of a Fund on which no initial sales
charge was assessed due to the amount purchased in a single transaction or
pursuant to the Cumulative Quantity Discount or a Statement of Intention and
that are redeemed (including certain redemptions in connection with an exchange)
within specified periods after the purchase date of the shares will be subject
to contingent deferred sales charges equal to the percentages set forth below of
the dollar amount subject to the charge. The charge will be assessed on an
amount equal to the lesser of the cost of the shares being redeemed and their
net asset value at the time of redemption. Accordingly, no sales charge will be
imposed on increases in net asset value above the initial purchase price. In
addition, no charge will be assessed on shares derived from the reinvestment of
dividends and distributions.
 
                                       34
<PAGE>
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- ----
 
<TABLE>
<CAPTION>
 
                                                                    Contingent Deferred
                                                                  Sales Charge as a % of
                                                                   Dollar Amount Subject
Amount of Purchase                        Period Shares Held             to Charge
- -----------------------------------------------------------------------------
<S>                                   <C>                         <C>
$1,000,000 to $2,499,999............  Less than one year                     0.75%
                                      One to two years                       0.50%
$2,500,000 to $4,999,999............  Less than one year                     0.50%
Over $5,000,000.....................  Less than one year                     0.25%
</TABLE>
 
No contingent deferred sales charge is charged on redemptions to the same extent
as described under "B Shares - Contingent Deferred Sales Charge." The contingent
deferred sales charge on shares purchased through an exchange from another fund
of the Trust is based upon the original purchase date and price of the other
fund's shares. For A shareholders with a Statement of Intention that do not
purchase $1,000,000 of a Fund's A Shares pursuant to their Statement, no
contingent deferred sales charge is imposed. The Statement of Intention provides
for a contingent deferred sales charge in certain other cases. Further
information about the contingent deferred sales charge is contained in the SAI.
 
B SHARES
 
DISTRIBUTION PLAN. B Shares are sold at their net asset value per share without
the imposition of a sales charge at the time of purchase. With respect to B
Shares, each Fund has adopted a distribution plan pursuant to Rule 12b-1 (the
"Plan") under the 1940 Act providing for distribution payments, at an annual
rate of up to 0.75% of the average daily net assets of the Fund attributable to
B Shares (the "distribution services fee"), by each Fund to Forum, to compensate
Forum for its distribution activities. The distribution payments due to Forum
from each Fund comprise: (1) sales commissions at levels set from time to time
by the Board ("sales commissions"); and (2) an interest fee calculated by
applying the rate of 1% over the prime rate to the outstanding balance of
uncovered distribution charges (as described below). The current sales
commission rate is 3% and Forum currently expects to pay sales commissions to
each broker-dealer at the time of sale of up to 3% of the purchase price of B
Shares of each Fund sold by the broker-dealer.
 
Under the distribution services agreement between Forum and the Trust, Forum
will receive, in addition to the distribution services fee, all contingent
deferred sales charges due upon redemptions of B Shares. The combined contingent
deferred sales charge and distribution services fee on B Shares are intended to
finance the distribution of those shares by permitting an investor to purchase
shares through broker-dealers without the assessment of an initial sales charge
and, at the same time, permitting Forum to compensate broker-dealers in
connection with the sales of the shares. Proceeds from the contingent deferred
sales charge with respect to a Fund are paid to Forum to
 
                                                                  35
<PAGE>
- ----
- ----
defray the expenses related to providing distribution-related services in
connection with the sales of B Shares, such as the payment of compensation to
broker-dealers selling B Shares. Forum may spend the distribution services fees
it receives as it deems appropriate on any activities primarily intended to
result in the sale of those shares.
 
Under the Plan, a Fund will make distribution services fee payments to Forum
only for periods during which there are outstanding uncovered distribution
charges attributable to that Fund. Uncovered distribution charges are equivalent
to all sales commissions previously due (plus interest), less amounts received
pursuant to the Plan and all contingent deferred sales charges previously paid
to Forum. At May 31, 1997, uncovered distribution expenses for Tax-Free Income
Fund, Colorado Tax-Free Fund and Minnesota Tax-Free Fund were $105,116, $84,082
and $201,650, respectively, or approximately 1.43%, 1.16%, and 1.81% of each
respective Fund's net assets attributable to B Shares as of the same date.
 
The amount of distribution services fees and contingent deferred sales charge
payments received by Forum with respect to a Fund is not related directly to the
amount of expenses incurred by Forum in connection with providing distribution
services to the B Shares and may be higher or lower than those expenses. Forum
may be considered to have realized a profit under the Plan if, at any time, the
aggregate amounts of all distribution services fees and contingent deferred
sales charge payments previously made to Forum exceed the total expenses
incurred by Forum in distributing B Shares.
 
Pursuant to the Plan, each Fund has agreed also to pay Forum a maintenance fee
in an amount equal to 0.25% of the average daily net assets of the Fund
attributable to B Shares for providing personal services to shareholder
accounts. The maintenance fee may be paid by Forum to broker-dealers in an
amount not to exceed 0.25% of the value of B Shares held by the customers of the
broker-dealers. The distribution services fee and the maintenance fee are each
accrued daily and paid monthly and will cause a Fund's B Shares to have a higher
expense ratio and to pay lower dividends than A Shares of that Fund.
Notwithstanding the discontinuation of distribution services fees with respect
to a Fund, the Fund may continue to pay maintenance fees.
 
A Fund does not accrue future distribution services fees as a liability of the
Fund with respect to the B Shares or reduce the Fund's current net assets in
respect to distribution services fees which may become payable under the Plan in
the future.
 
In the event that the Plan is terminated or not continued with respect to a
Fund, the Fund may, under certain circumstances, continue to pay distribution
services fees to Forum (but only with respect to sales that occurred prior to
the termination or discontinuance of the Plan). Those circumstances are
described in detail in the SAI. In deciding whether to purchase B Shares of a
 
                                       36
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Fund, investors should consider that payments of distribution services fees
could continue until such time as there are no uncovered distribution charges
under the Plan attributable to that Fund. In approving the Plan, the Board
determined that there was a reasonable likelihood that the Plan would benefit
each Fund and its B shareholders.
 
Periods with a high level of sales of B Shares of a Fund accompanied by a low
level of redemptions of those shares that are subject to contingent deferred
sales charges will tend to increase uncovered distribution charges. Conversely,
periods with a low level of sales of B Shares of a Fund accompanied by a high
level of redemptions of those shares that are subject to contingent deferred
sales charges will tend to reduce uncovered distribution charges. A high level
of sales of B Shares during the first few years of operations, coupled with the
limitation on the amount of distribution services fees payable by a Fund with
respect to B Shares during any fiscal year, would cause a large portion of the
distribution services fees attributable to a sale of the B Shares to be accrued
and paid by the Fund to Forum with respect to those shares in fiscal years
subsequent to the years in which those shares were sold. The payment delay would
in turn result in the incurrence and payment of increased interest fees under
the Plan.
 
CONTINGENT DEFERRED SALES CHARGE. B Shares of a Fund which are redeemed within
six years of purchase will be subject to contingent deferred sales charges equal
to the percentages set forth below of the dollar amount subject to the charge.
The amount of the contingent deferred sales charge, if any, will vary depending
on the number of years between the payment for the purchase of B Shares of a
Fund and their redemption.
 
The contingent deferred sales charge will be assessed on an amount equal to the
lesser of the cost of the shares being redeemed and their net asset value at the
time of redemption. Accordingly, no sales charge will be imposed on increases in
net asset value above the initial purchase price. In addition, no charge will be
assessed on shares derived from the reinvestment of dividends and distributions.
 
                                                                  37
<PAGE>
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<TABLE>
<CAPTION>
 
                                           Contingent Deferred
                                           Sales Charge as a %
                                            of Dollar Amount
Year Since Purchase                         Subject to Charge
- ---------------------------------------------------------------
<S>                                       <C>
First...................................             3.0%
Second..................................             2.0%
Third...................................             2.0%
Fourth..................................             1.0%
Fifth...................................          None
Sixth...................................          None
</TABLE>
 
Redemptions of shares will be effected in the manner that results in the
imposition of the lowest deferred sales charge. Redemptions with respect to a
shareholder's investment in a Fund will automatically be made first from any A
Shares in the Fund, second from B Shares of the Fund acquired pursuant to
reinvestment of dividends and distributions, third from B Shares of the Fund
held for over four years and fourth from the longest outstanding B Shares of the
Fund held for less than four years.
 
No contingent deferred sales charge is imposed on: (1) redemptions of shares
acquired through the reinvestment of dividends and distributions; (2)
involuntary redemptions by a Fund of shareholder accounts with low account
balances; (3) redemptions of shares following the death or disability of a
shareholder if the Fund is notified within one year of the shareholder's death
or disability; (4) redemptions to effect a distribution (other than a lump sum
distribution) from an IRA, Keogh plan or Section 403(b) custodial account or
from a qualified retirement plan; and (5) redemptions by any registered
investment adviser with whom Forum has entered into a share purchase agreement
and which is acting on behalf of its fiduciary customer accounts. (See the SAI
for further information.)
 
CONVERSION FEATURE. After six years from the end of the calendar month in which
the shareholder's purchase order for B shares was accepted, the B Shares will
automatically convert to A Shares of that Fund (the "conversion"). The
conversion will be on the basis of the relative net asset values of the A and B
Shares, without the imposition of any sales load, fee or other charge. For
purposes of conversion, B Shares of a Fund purchased through the reinvestment of
dividends and distributions will be considered to be held in a separate
sub-account. Each time any B Shares in the shareholder's account (other than
those in the sub-account) convert, an equal pro rata portion of those shares in
the sub-account will also convert. The conversion is subject to the continuing
availability of certain opinions of counsel and may be suspended if such an
opinion is no longer available at the time the
 
                                       38
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conversion is to occur. In that event, no further conversions would occur, and
shares might continue to be subject to distribution services and maintenance
fees for an indefinite period.
 
                                                                  39
<PAGE>
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6. HOW TO BUY SHARES
 
MINIMUM INVESTMENT
 
There is a $1,000 minimum for initial purchases and a $100 minimum for
subsequent purchases of Shares of the Funds. A Fund may in its discretion waive
the investment minimums. Shareholders who elect electronic share purchase
privileges such as the Automatic Investment Plan or the Directed Dividend Option
are not subject to the initial investment minimum. (See "Other Shareholder
Services - Automatic Investment Plan" and "Dividends and Tax Matters.")
 
The Funds reserve the right to reject any subscription for the purchase of their
shares. Share certificates are issued only to shareholders of record upon their
written request and no certificates are issued for fractional shares.
 
PURCHASE PROCEDURES
 
INITIAL PURCHASES
THERE ARE THREE WAYS TO PURCHASE SHARES INITIALLY.
 
1.  BY MAIL. Investors may send a check or money order (cash cannot be accepted)
along with a completed account application form to the Trust at the address
listed under "Account Application." Checks or money orders are accepted at full
value subject to collection. If a check or money order does not clear, the
purchase order will be canceled and the investor will be liable for any losses
or fees incurred by the Trust, the Transfer Agent or Forum.
 
For individual or Uniform Gift to Minors Act accounts, the check or money order
used to purchase shares of a Fund must be made payable to "Norwest Advantage
Funds" or to one or more owners of that account and endorsed to Norwest
Advantage Funds. No other method of payment by check will be accepted. For
corporation, partnership, trust, 401(k) plan or other non-individual type
accounts, the check used to purchase shares of a Fund must be made payable on
its face to "Norwest Advantage Funds." No other method of payment by check will
be accepted.
 
2.  BY BANK WIRE. Investors may make an initial investment in a Fund using the
wire system for transmittal of money among banks. The investor should first
telephone the Transfer Agent at (612) 667-8833 or (800) 338-1348 to obtain an
account number. The investor should then instruct a bank to wire the investor's
money immediately to:
 
     NORWEST BANK MINNESOTA, N.A.
     ABA 091 000 019
     FOR CREDIT TO: NORWEST ADVANTAGE FUNDS
          0844-131
          RE:  [NAME OF FUND]
               [DESIGNATE A SHARES OR B SHARES]
          ACCOUNT NO.:
          ACCOUNT NAME:
 
                                       40
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The investor should then promptly complete and mail the account application
form. There may be charges by the investor's bank for transmitting the money by
bank wire. The Trust does not charge investors for the receipt of wire
transfers. Payment by bank wire is treated as a federal funds payment when
received.
 
3.  THROUGH FINANCIAL INSTITUTIONS. Shares may be purchased and redeemed through
certain broker-dealers, banks and other financial institutions ("Processing
Organizations"). The Transfer Agent, Forum and their affiliates may be
Processing Organizations. Processing Organizations, may receive as a
broker-dealer's reallowance a portion of the sales charge paid by their
customers who purchase A Shares of a Fund, may receive payments from Forum with
respect to sales of B Shares and may receive payments as a processing agent from
the Transfer Agent. In addition, financial institutions, including Processing
Organizations, may charge their customers a fee for their services and are
responsible for promptly transmitting purchase, redemption and other requests to
the Funds.
 
Investors who purchase shares through a Processing Organization will be subject
to the procedures of their Processing Organization, which may include charges,
limitations, investment minimums, cutoff times and restrictions in addition to,
or different from, those applicable to shareholders who invest in a Fund
directly. These investors should acquaint themselves with their institution's
procedures and should read this Prospectus in conjunction with any materials and
information provided by their institution. Customers who purchase a Fund's
shares through a Processing Organization may or may not be the shareholder of
record and, subject to their institution's and the Funds' procedures, may have
Fund shares transferred into their name. There is typically a three-day
settlement period for purchases and redemptions through broker-dealers. Certain
Processing Organizations may also enter purchase orders with payment to follow.
 
Certain shareholder services may not be available to shareholders who have
purchased shares through a Processing Organization. These shareholders should
contact their Processing Organization for further information. The Trust may
confirm purchases and redemptions of a Processing Organization's customers
directly to the Processing Organization, which in turn will provide its
customers with confirmations and periodic statements. The Trust is not
responsible for the failure of any Processing Organization to carry out its
obligations to its customer.
 
SUBSEQUENT PURCHASES
Subsequent purchases may be made by mailing a check, by sending a bank wire or
through the shareholder's Processing Organization as indicated above. All
payments should clearly indicate the shareholder's name and account number.
 
                                                                  41
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ACCOUNT APPLICATION
 
Investors may obtain the account application form necessary to open an account
by writing the Trust at the following address:
 
     NORWEST ADVANTAGE FUNDS
     [NAME OF FUND]
     NORWEST BANK MINNESOTA, N.A.
     TRANSFER AGENT
     733 MARQUETTE AVENUE
     MINNEAPOLIS, MN 55479-0040
 
To participate in shareholder services not referenced on the account application
form and to change information on a shareholder's account (such as addresses),
investors or existing shareholders should contact the Trust. The Trust reserves
the right in the future to modify, limit or terminate any shareholder privilege
upon appropriate notice to shareholders and to charge a fee for certain
shareholder services, although no such fees are currently contemplated. Any
privilege and participation in any program may be terminated by the shareholder
at any time by writing to the Trust.
 
GENERAL INFORMATION
 
Fund shares are continuously sold on every weekday except customary national
business holidays (New Year's Day, Martin Luther King, Jr. Day,
Presidents' Day, Memorial Day, Independence Day, Labor Day, Thanksgiving
and Christmas) and Good Friday ("Fund Business Day"). The purchase price for
Fund shares equals their net asset value next-determined after acceptance of an
order plus, in the case of the A Shares, any applicable sales charge imposed at
the time of purchase.
 
Fund shares become entitled to receive dividends and distributions on the next
Fund Business Day after a purchase order is accepted. The Funds reserve the
right to reject any subscription for the purchase of their shares. Share
certificates are issued only to shareholders of record upon their written
request and no certificates are issued for fractional shares.
 
All payments for Shares must be in U.S. dollars. Investments in a Fund may be
made either through certain financial institutions or by an investor directly.
An investor who invests in a Fund directly will be the shareholder of record.
All transactions in Fund shares are effected through the Transfer Agent which
accepts orders for redemptions and for subsequent purchases only from
shareholders of record. Shareholders of record will receive from the Trust
periodic statements listing all account activity during the statement period.
 
                                       42
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                                                          7.  HOW TO SELL SHARES
 
GENERAL INFORMATION
 
Fund Shares may be sold (redeemed) at their net asset value on any Fund Business
Day subject to a contingent deferred sales charge imposed, in the case of A
Shares, on some redemptions made within two years of purchase and, in the case
of B Shares, on most redemptions made within six years of purchase. There is no
minimum period of investment and no restriction on the frequency of redemptions.
 
Fund shares are redeemed as of the next determination of the Fund's net asset
value following receipt by the Transfer Agent of the redemption order in proper
form (and any supporting documentation which the Transfer Agent may require).
Redeemed shares are not entitled to receive dividends declared after the day the
redemption becomes effective.
 
Normally, redemption proceeds are paid immediately, but in no event later than
seven days, following receipt of a redemption order. Proceeds of redemption
requests (and exchanges), however, will not be paid unless any check to purchase
the shares being redeemed has been cleared by the shareholder's bank, which may
take up to 15 days. This delay may be avoided by paying for shares through wire
transfers. Unless otherwise indicated, redemption proceeds normally are paid by
check mailed to the shareholder's record address. The right of redemption may
not be suspended nor the payment dates postponed for more than seven days after
the tender of the shares to a Fund except when the New York Stock Exchange is
closed (or when trading thereon is restricted) for any reason other than its
customary weekend or holiday closings, for any period during which an emergency
exists as a result of which disposal by the Fund of its portfolio securities or
determination by the Fund of the value of its net assets is not reasonably
practicable and for such other periods as the SEC may permit.
 
REDEMPTION PROCEDURES
 
Shareholders who have invested through a Processing Organization may redeem
their shares through the Processing Organization as described above.
Shareholders who have invested directly in a Fund may redeem their Shares as
described below. Shareholders who wish to redeem shares by telephone or receive
redemption proceeds by bank wire must elect these options by properly completing
the appropriate sections of their account application form. These privileges may
not be available until several weeks after a shareholder's application is
received. Shares for which certificates have been issued may not be redeemed by
telephone.
 
                                                                  43
<PAGE>
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1.  BY MAIL. Shareholders may redeem shares by sending a written request to the
Transfer Agent accompanied by any share certificate that may have been issued to
the shareholder to evidence the shares being redeemed. All written requests for
redemption must be signed by the shareholder with signature guaranteed, and all
certificates submitted for redemption must be endorsed by the shareholder with
signature guaranteed. (See "How to Sell Shares - Other Redemption Matters.")
 
2.  BY TELEPHONE. A shareholder who has elected telephone redemption privileges
may make a telephone redemption request by calling the Transfer Agent at (800)
338-1348 or (612) 667-8833 and providing the shareholder's account number, the
exact name in which his shares are registered and the shareholder's social
security or taxpayer identification number. In response to the telephone
redemption instruction, the Trust will mail a check to the shareholder's record
address or, if the shareholder has elected wire redemption privileges, wire the
proceeds. (See "How to Sell Shares - Other Redemption Matters.")
 
3.  BY BANK WIRE. For redemptions of more than $5,000, a shareholder who has
elected wire redemption privileges may request a Fund to transmit the redemption
proceeds by federal funds wire to a bank account designated in writing by the
shareholder. To request bank wire redemptions by telephone, the shareholder also
must have elected the telephone redemption privilege. Redemption proceeds are
transmitted by wire on the day after a redemption request in proper form is
received by the Transfer Agent.
 
OTHER REDEMPTION MATTERS
 
To protect shareholders and the Funds against fraud, signatures on certain
requests must have a signature guarantee. Requests must be made in writing and
include a signature guarantee for any of the following transactions: (1) any
endorsement on a share certificate; (2) instruction to change a shareholder's
record name; (3) modification of a designated bank account for wire redemptions;
(4) instruction regarding an Automatic Investment Plan or Automatic Withdrawal
Plan; (5) dividend and distribution election; (6) telephone redemption; (7)
exchange option election or any other option election in connection with the
shareholder's account; (8) written instruction to redeem Shares whose value
exceeds $50,000; (9) redemption in an account in which the account address has
changed within the last 30 days; (10) redemption when the proceeds are deposited
in a Norwest Advantage Funds account under a different account registration; and
(11) the remitting of redemption proceeds to any address, person or account for
which there are not established standing instructions on the account.
 
                                       44
<PAGE>
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Signature guarantees may be provided by any bank, broker-dealer, national
securities exchange, credit union, savings association or other eligible
institution that is authorized to guarantee signatures and is acceptable to the
Transfer Agent. Whenever a signature guarantee is required, the signature of
each person required to sign for the account must be guaranteed.
 
Shareholders who want telephone redemption or exchange privileges must elect
those privileges. The Trust and Transfer Agent will employ reasonable procedures
in order to verify that telephone requests are genuine, including recording
telephone instructions and causing written confirmations of the resulting
transactions to be sent to shareholders. If the Trust and Transfer Agent did not
employ such procedures, they could be liable for losses due to unauthorized or
fraudulent telephone instructions. Shareholders should verify the accuracy of
telephone instructions immediately upon receipt of confirmation statements.
During times of drastic economic or market changes, telephone redemption and
exchange privileges may be difficult to implement. In the event that a
shareholder is unable to reach the Transfer Agent by telephone, requests may be
mailed or hand-delivered to the Transfer Agent.
 
Due to the cost to the Trust of maintaining smaller accounts, the Trust reserves
the right to redeem, upon not less than 60 days' written notice, all shares in
any Fund account whose aggregate net asset value is less than $1,000 immediately
following any redemption.
 
                                                                  45
<PAGE>
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8. OTHER SHAREHOLDER SERVICES
 
EXCHANGES
 
Shareholders of A Shares and B Shares may exchange their shares for A Shares and
B Shares, respectively, of the other funds of the Trust that offer those shares.
As of the date of this Prospectus, the funds of the Trust that offer A Shares
and B Shares, which are offered through separate prospectuses, are Stable Income
Fund, Intermediate Government Income Fund, Income Fund, Total Return Bond Fund,
Income Equity Fund, ValuGrowth-SM- Stock Fund, Diversified Equity Fund, Growth
Equity Fund, Small Company Stock Fund, Small Cap Opportunities Fund and
International Fund. It is anticipated that the Trust may in the future create
additional funds that will offer Shares which will be exchangeable with the
Funds' Shares. In addition, A Shares may be exchanged for Investor Shares of
Ready Cash Investment Fund and Municipal Money Market Fund of the Trust. B
Shares may be exchanged for Exchange Shares of Ready Cash Investment Fund.
Prospectuses for the shares of the funds listed above, as well as a current list
of the funds of the Trust that offer shares exchangeable with the Shares of the
Funds, can be obtained through Forum by contacting the Transfer Agent.
 
The Funds do not charge for exchanges, and there is currently no limit on the
number of exchanges a shareholder may make. The Funds reserve the right,
however, to limit excessive exchanges by any shareholder. Exchanges are subject
to the fees (other than contingent deferred sales charges) charged by, and the
limitations (including minimum investment restrictions) of, the fund into which
a shareholder is exchanging.
 
Exchanges may only be made between identically registered accounts or by opening
a new account. A new account application is required to open a new account
through an exchange if the new account will not have an identical registration
and the same shareholder privileges as the account from which the exchange is
being made. Shareholders may only exchange into a fund if that fund's shares may
legally be sold in the shareholder's state of residence.
 
Under federal tax law, the Funds treat an exchange as a redemption and a
purchase. Accordingly, a shareholder may realize a capital gain or loss
depending on whether the value of the shares redeemed is more or less than the
shareholder's basis in the shares at the time of the exchange transaction.
Exchange procedures may be amended materially or terminated by the Trust at any
time upon 60 days' notice to shareholders. (See "Additional Purchase and
Redemption Information" in the SAI.)
 
SALES CHARGES. The exchange of A Shares may result in additional sales charges.
If an exchange of A Shares is made into a fund that imposes an initial sales
charge, the shareholder is required to pay an amount equal to any excess of that
fund's initial sales charge attributable to the number of shares being
 
                                       46
<PAGE>
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- ----
acquired in the exchange over any initial sales charge paid by the shareholder
for the shares being exchanged. For example, if a shareholder paid a 2% initial
sales charge in connection with a purchase of shares and then exchanged those
shares into A Shares of another fund with a 3% initial sales charge, the
shareholder would pay an additional 1% sales charge on the exchange. A Shares
acquired through the reinvestment of dividends or distributions are deemed to
have been acquired with a sales charge rate equal to that applicable to the
shares on which the dividends or distributions were paid.
 
Shares of a Fund ("Original Shares") may be exchanged without the payment of any
contingent deferred sales charge. A and B Shares acquired as a result of such
exchange ("New Shares") and subsequently redeemed will nonetheless be subject to
the contingent deferred sales charge applicable to the Original Shares as if
those shares were being redeemed at that time. For purposes of computing both
the contingent deferred sales charge payable upon redemption of the New Shares
and, in the case of B Shares, the time remaining before the New B Shares convert
to A Shares of that Fund, the deferred sales charge and the time remaining
applicable to the Original Shares will apply to the New Shares rather than the
deferred sales charge and time remaining that would otherwise apply. The
deferred sales charge and time remaining applicable to Shares first purchased by
a shareholder will apply to New Shares resulting from both an initial and any
subsequent exchanges.
 
1.  EXCHANGES BY MAIL. Exchanges may be made by sending a written request to the
Transfer Agent accompanied by any share certificates for the shares to be
exchanged. All written requests for exchanges must be signed by the shareholder,
and all certificates submitted for exchange must be endorsed by the shareholder
with signature guaranteed. (See "How to Sell Shares - Other Redemption
Matters.")
 
2.  EXCHANGES BY TELEPHONE. A shareholder who has elected telephone exchange
privileges may make a telephone exchange request by calling the Transfer Agent
at (800) 338-1348 or (612) 667-8833 and providing the shareholder's account
number, the exact name in which the shareholder's shares are registered and the
shareholder's social security or taxpayer identification number. (See "How to
Sell Shares - Other Redemption Matters.")
 
AUTOMATIC INVESTMENT PLAN
 
Under the Funds' Automatic Investment Plan, shareholders may authorize monthly
amounts of $50 or more to be withdrawn automatically from the shareholder's
designated bank account (other than passbook savings) and sent to the Transfer
Agent for investment in either A or B Shares of a Fund. Shareholders wishing to
use this plan must complete an application which may be obtained by writing or
calling the Transfer Agent. The Trust may
 
                                                                  47
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modify or terminate the automatic investment plan with respect to any
shareholder in the event that the Trust is unable to settle any transaction with
the shareholder's bank. If the Automatic Investment Plan is terminated before
the shareholder's account totals $1,000, the Trust reserves the right to close
the account in accordance with the procedures described under "How to Sell
Shares - Other Redemption Matters."
 
AUTOMATIC WITHDRAWAL PLAN
 
A shareholder whose Shares in a single account total $1,000 or more may
establish a withdrawal plan to provide for the preauthorized payment from the
shareholder's account of $250 or more on a monthly, quarterly, semi-annual or
annual basis. Under the withdrawal plan, sufficient shares in the shareholder's
account are redeemed to provide the amount of the periodic payment and any
taxable gain or loss is recognized by the shareholder upon redemption of the
shares. Shareholders wishing to utilize the withdrawal plan may do so by
completing an application which may be obtained by writing or calling the
Transfer Agent. The Trust may suspend a shareholder's withdrawal plan without
notice if the account contains insufficient funds to effect a withdrawal or if
the account balance is less than $1,000 at any time.
 
REOPENING ACCOUNTS
 
A shareholder may reopen an account, without filing a new account application
form, at any time within one year after the shareholder's account is closed,
provided that the information on the account application form on file with the
Trust is still applicable.
 
                                       48
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                                                   9.  DIVIDENDS AND TAX MATTERS
 
DIVIDENDS
 
Dividends of each Fund's net investment income are declared daily and paid
monthly. Distributions of net capital gain, if any, realized by a Fund are
distributed annually. Dividends and distributions paid by a Fund with respect to
each class of shares are calculated in the same manner and at the same time. The
per share dividends on a Fund's B Shares will be lower than the per share
dividends on A Shares as a result of the distribution services fees and
maintenance fees applicable to B Shares.
 
Shareholders may choose to have dividends and distributions of a Fund reinvested
in shares of that Fund (the "Reinvestment Option"), to receive dividends and
distributions in cash (the "Cash Option") or to direct dividends and
distributions to be reinvested in shares of another fund of the Trust (the
"Directed Dividend Option"). All dividends and distributions are treated in the
same manner for federal income tax purposes whether received in cash or
reinvested in shares of a fund.
 
Under the Reinvestment Option, all dividends and distributions of a Fund are
automatically invested in additional shares of that Fund. All dividends and
distributions are reinvested at a Fund's net asset value as of the payment date
of the dividend or distribution. Shareholders are assigned this option unless
one of the other two options is selected. Under the Cash Option, all dividends
and distributions are paid to the shareholder in cash. Under the Directed
Dividend Option, shareholders of a Fund whose shares in a single account of that
Fund total $10,000 or more may elect to have all dividends and distributions
reinvested in shares of another fund of the Trust, provided that those shares
are eligible for sale in the shareholder's state of residence. For further
information concerning the Directed Dividend Option, shareholders should contact
the Transfer Agent.
 
TAX MATTERS
 
Each Fund intends to qualify for each fiscal year to be taxed as a "regulated
investment company" under the Internal Revenue Code of 1986 (the "Code"). As
such, each Fund will not be liable for federal income and excise taxes on the
net investment income and capital gain distributed to its shareholders. Because
each Fund intends to distribute all of its net investment income and net capital
gain each year, each Fund should thereby avoid all federal income and excise
taxes.
 
Dividends paid by a Fund out of tax-exempt interest income earned by the Fund
("exempt-interest dividends") generally will not be subject to federal income
tax in the hands of the Fund's shareholders. Persons who are "substantial users"
or "related persons" thereof of facilities financed by private
 
                                                                  49
<PAGE>
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activity securities held by a Fund, however, may be subject to federal income
tax on their pro rata share of the interest income from those securities and
should consult their tax advisers before purchasing Shares. Interest on certain
private activity securities issued after August 7, 1986 is treated as an item of
tax preference for purposes of the AMT imposed on individuals and corporations.
In addition, exempt-interest dividends are included in the "adjusted current
earnings" of corporations for AMT purposes.
 
Interest on indebtedness incurred by shareholders to purchase or carry shares of
a Fund generally is not deductible for federal income tax purposes. Under rules
for determining when borrowed funds are used for purchasing or carrying
particular assets, Shares of a Fund may be considered to have been purchased or
carried with borrowed funds even though those funds are not directly linked to
the Shares.
 
Substantially all of the dividends paid by each Fund are anticipated to be
exempt from federal income taxes. Shortly after the close of each calendar year,
a statement is sent to each shareholder advising the shareholder of the portion
of the Fund's dividends that is derived from obligations of issues on the
various states and the portion of the Fund's dividends that is exempt from
federal income taxes. These portions are determined for a Fund's entire year
and, thus, are annual averages, rather than day-by-day determinations for each
shareholder. Dividends paid by a Fund out of its net investment income
(including net short-term capital gain) are taxable to shareholders of the Fund
as ordinary income.
 
Dividends paid by a Fund out of its net investment income (including net
short-term capital gain) are taxable to shareholders of the Fund as ordinary
income. Two different tax rates apply to net capital gain - that is, the excess
of gains from capital assets held for more than one year over net losses from
capital assets held for not more than one year. One rate (generally 28%) applies
to net gain on capital assets held for more than one year but not more than 18
months ("mid-term gain"), and a second rate (generally 20%) applies to the
balance of net capital gain ("adjusted net capital gain"). Distributions of
mid-term gain and adjusted net capital gain will be taxable to shareholders as
such, regardless of how long a shareholder has held shares in the Fund. If a
shareholder holds Shares for six months or less and during that period receives
a distribution of net capital gain, any loss realized on the sale of the Shares
during that six-month period would be a long-term capital loss to the extent of
the distribution. Distributions reduce the net asset value of the Fund paying
the distribution by the amount of the distribution. Furthermore, these
distributions made shortly after the purchase of Shares by a shareholder,
although in effect a return of capital to that particular shareholder, will be
taxable to the shareholder.
 
                                       50
<PAGE>
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Each Fund is required by federal law to withhold 31% of reportable payments
(which may include dividends, capital gain distributions and redemptions) paid
to a shareholder who fails to provide the Fund with a correct taxpayer
identification number or to make required certifications, or who is subject to
backup withholding.
 
Reports containing appropriate information with respect to the federal income
tax status of dividends and distributions paid during the year by each Fund will
be mailed to shareholders shortly after the close of each calendar year.
 
TAX-FREE INCOME FUND. The exemption for federal income tax purposes of dividends
derived from interest on municipal securities does not necessarily result in an
exemption under the income or other tax laws of any state or local taxing
authority. Shareholders of the Fund may be exempt from state and local taxes on
distributions of tax-exempt interest income derived from obligations of the
state and/or municipalities of the state in which they reside but may be subject
to tax on income derived from the municipal securities of other jurisdictions.
Shareholders are advised to consult with their tax advisers concerning the
application of state and local taxes to investments in the Fund which may differ
from the federal income tax consequences described above.
 
COLORADO TAX-FREE FUND. It is anticipated that substantially all of the
dividends paid by the Fund to individuals will be exempt from Colorado personal
income tax. Dividends and distributions made by the Fund to Colorado
individuals, trusts, estates and corporations subject to the Colorado income tax
generally will be treated for Colorado income tax purposes in the same manner as
they are treated under the Code for federal income tax purposes. Some
differences may arise for taxpayers subject to the AMT, because interest on
Colorado private activity bonds is not a preference item for Colorado income tax
purposes. Furthermore, Colorado has no corporate alternative minimum tax.
Because the Fund may, except as indicated, purchase only Colorado municipal
securities, none of the exempt interest dividends paid by the Fund will be
subject to Colorado income tax.
 
MINNESOTA TAX-FREE FUND. It is anticipated that substantially all of the
dividends paid by the Fund to individuals will be exempt from Minnesota personal
income tax. Interest earned on Minnesota municipal securities is generally
excluded from gross income for Minnesota state income tax purposes, while
interest earned on securities issued by municipal issuers from other states is
not excluded. At least 95% of the exempt-interest dividends paid by the Fund
must be derived from Minnesota municipal securities in order for any portion of
the exempt-interest dividends paid by the Fund to be
 
                                                                  51
<PAGE>
- ----
- ----
exempt from the Minnesota personal income tax. Exempt-interest dividends paid by
the Fund to shareholders that are corporations are subject to Minnesota
franchise tax.
 
Under Minnesota law, if the difference in state income tax treatment between
Minnesota municipal securities and the municipal securities of issuers in other
states should be judicially determined to discriminate against interstate
commerce, the Minnesota legislature has expressed its intention that the
discrimination be remedied by adding interest on Minnesota municipal securities
to the taxable income of Minnesota residents. Such treatment would begin with
the taxable years that begin during the calendar year in which the court's
decision is final. If the interest on Minnesota municipal securities is
determined in general to be taxable income for Minnesota income tax, the Fund
will consider what actions are to be taken, in light of its current investment
objectives and investment policies.
 
The Minnesota alternative minimum tax on resident individuals is based in part
on their federal alternative minimum taxable income. Accordingly, individual
shareholders of the Fund may be subject to the Minnesota alternative minimum tax
on exempt-interest dividends paid by the Fund which are attributable to interest
received by the Fund on certain private activity securities issued after August
7, 1986, even though these dividends are exempt from the regular Minnesota
personal income tax.
 
                                       52
<PAGE>
- ----
- ----
 
                                                          10.  OTHER INFORMATION
 
BANKING LAW MATTERS
 
Federal banking rules generally permit a bank or bank affiliate to act as
investment adviser, transfer agent and custodian to an investment company and to
purchase shares of the investment company as agent for and upon the order of a
customer and, in connection therewith, to retain a sales charge or similar
payment. Forum believes that Norwest and any bank or other bank affiliate also
may perform Processing Organization or similar services for the Trust and its
shareholders without violating applicable federal banking rules. If a bank or
bank affiliate were prohibited in the future from so acting, changes in the
operation of the Trust could occur and a shareholder serviced by the bank or
bank affiliate may no longer be able to avail itself of those services. It is
not expected that shareholders would suffer any adverse financial consequences
as a result of any of these occurrences.
 
DETERMINATION OF NET ASSET VALUE
 
The net asset value per share of each class of each Fund is determined as of
4:00 p.m., Eastern Time, on each Fund Business Day by dividing the value of the
Fund's net assets (i.e., the value of its securities and other assets less its
liabilities) by the number of shares outstanding at the time the determination
is made. Securities owned by a Fund for which market quotations are readily
available are valued at current market value or, in their absence, at fair value
as determined by the Board. The Funds only determine net asset value on Fund
Business Days.
 
PERFORMANCE INFORMATION
 
A Fund's performance may be quoted in terms of yield or total return. All
performance information is based on historical results and are not intended to
indicate future performance. A Fund's yield is a way of showing the rate of
income the Fund earns on its investments as a percentage of the Fund's share
price. To calculate standardized yield, a Fund takes the income it earned from
its investments for a 30-day period (net of expenses), divides it by the average
number of shares entitled to receive dividends, and expresses the result as an
annualized percentage rate based on the Fund's share price at the end of the
30-day period. A Fund may also quote tax-equivalent yield, which shows the
taxable yield a shareholder would have to earn to equal the Fund's tax-free
yield, after taxes. A tax-equivalent yield is calculated by dividing a Fund's
tax-free yield by one minus a stated federal, state or combined federal and
state tax rate.
 
A Fund's total return shows its overall change in value, including changes in
share price and assuming all the Fund's dividends and distributions are
 
                                                                  53
<PAGE>
- ----
- ----
reinvested. A cumulative total return reflects a Fund's performance over a
stated period of time. An average annual total return reflects the hypothetical
annually compounded return that would have produced the same cumulative total
return if the Fund's performance had been constant over the entire period.
Because average annual returns tend to smooth out variations in the Funds'
returns, shareholders should recognize that they are not the same as actual
year-by-year results. Published yield quotations are, and total return figures
may be, based on amounts invested in a Fund net of sales charges that may be
paid by an investor. A computation of yield or total return that does not take
into account sales charges paid by an investor will be higher than a similar
computation that takes into account payment of sales charges.
 
The Funds' advertisements may reference ratings and rankings among similar
mutual funds by independent evaluators such as Morningstar, Inc., Lipper
Analytical Services, Inc. and IBC Financial Data, Inc. In addition, the
performance of a Fund may be compared to securities indices. This material is
not to be considered representative or indicative of future performance. All
performance information for a Fund is calculated on a class basis.
 
THE TRUST AND ITS SHARES
 
The Trust has an unlimited number of authorized shares of beneficial interest.
The Board may, without shareholder approval, divide the authorized shares into
an unlimited number of separate portfolios or series (such as the Funds) and may
divide portfolios or series into classes of shares (such as A Shares); the costs
of doing so will be borne by the Trust. Currently the authorized shares of the
Trust are divided into thirty-nine separate series.
 
OTHER CLASSES OF SHARES. The Funds currently issue three classes of shares, A
Shares, B Shares and I Shares. I Shares are offered to fiduciary, agency and
custodial clients of bank trust departments, trust companies and their
affiliates without any sales charges. Each class of a Fund will have a different
expense ratio and may have different sales charges (including distribution
fees). Each class' performance is affected by its expenses and sales charges.
For more information on any other class of shares of the Funds investors may
contact the Transfer Agent at (612) 667-8833 or (800) 338-1348 or the Funds'
distributor. Investors may also contact their Norwest sales representative to
obtain information about the other classes.
 
SHAREHOLDER VOTING AND OTHER RIGHTS. Each share of each series of the Trust and
each class of shares has equal dividend, distribution, liquidation and voting
rights, and fractional shares have those rights proportionately, except that
expenses related to the distribution of the shares of each class (and certain
other expenses such as transfer agency and administration expenses) are borne
solely by those shares and each class votes separately with respect to the
provisions of any Rule 12b-1 plan which pertains to the class and other
 
                                       54
<PAGE>
- ----
- ----
matters for which separate class voting is appropriate under applicable law.
Generally, shares will be voted in the aggregate without reference to a
particular series or class, except if the matter affects only one series or
class or voting by series or class is required by law, in which case shares will
be voted separately by series or class, as appropriate. Delaware law does not
require the Trust to hold annual meetings of shareholders, and it is anticipated
that shareholder meetings will be held only when specifically required by
federal or state law. Shareholders (and Trustees) have available certain
procedures for the removal of Trustees. There are no conversion or preemptive
rights in connection with shares of the Trust. All shares when issued in
accordance with the terms of the offering will be fully paid and nonassessable.
Shares are redeemable at net asset value, at the option of the shareholders,
subject to any contingent deferred sales charge that may apply. A shareholder in
a series is entitled to the shareholder's pro rata share of all dividends and
distributions arising from that series' assets and, upon redeeming shares, will
receive the portion of the series' net assets represented by the redeemed
shares.
 
As of October 1, 1997, Norwest Bank Colorado, N.A. may be deemed to have
controlled Colorado Tax-Free Fund and Norwest Bank may be deemed to have
controlled Limited Term Tax-Free Fund and Tax-Free Income Fund due to
investments by their customers. From time to time, this shareholder or other
shareholders may own a large percentage of the Shares of a Fund and,
accordingly, may be able to greatly affect (if not determine) the outcome of a
shareholder vote.
 
NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS, THE STATEMENT OF
ADDITIONAL INFORMATION AND THE FUNDS' OFFICIAL SALES LITERATURE IN CONNECTION
WITH THE OFFERING OF THE FUNDS' SHARES, AND IF GIVEN OR MADE, SUCH INFORMATION
OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE
TRUST. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER IN ANY STATE IN WHICH, OR TO
ANY PERSON TO WHOM, SUCH OFFER MAY NOT LAWFULLY BE MADE.
 
                                                                  55
<PAGE>



         ------------------------------------------------------------
                                                   ---------------
           [LOGO]                                     BULK RATE
                                                     U.S. POSTAGE
           733 MARQUETTE AVENUE                         PAID
           MINNEAPOLIS, MN 55479-0040              PERMIT NO. 3489
                                                   MINNEAPOLIS, MN
                                                   ---------------




         ------------------------------------------------------------






          [LOGO]

          SHAREHOLDER INFORMATION:

               Norwest Bank Minnesota, N.A.
               733 Marquette Avenue
               Minneapolis, Minnesota 55479-0040
               612-667-8833 (MINNEAPOLIS/ST. PAUL)
               800-338-1348 (ELSEWHERE)

          -COPYRIGHT- 1997 NORWEST ADVANTAGE FUNDS
          MFBPT004 10/97


<PAGE>

                                  INCOME FUNDS
- --------------------------------------------------------------------------------


                                   PROSPECTUS


                                 OCTOBER 1, 1997



                               STABLE INCOME FUND
                                 ---------------
                              INTERMEDIATE GOVERNMENT
                                   INCOME FUND
                                 ---------------
                                   INCOME FUND
                                 ---------------
                              TOTAL RETURN BOND FUND




                                     [LOGO]



                                NOT FDIC INSURED


<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
<TABLE>
<C>        <S>                                          <C>        <C>
                             TABLE OF CONTENTS
 
       1.  PROSPECTUS SUMMARY.........................          2
                                                                2
           Highlights of the Funds....................
                                                                6
           Expense Information........................
 
       2.  FINANCIAL HIGHLIGHTS.......................         10
 
       3.  INVESTMENT OBJECTIVES AND POLICIES.........         18
                                                               18
           Stable Income Fund.........................
                                                               19
           Intermediate Government Income Fund........
                                                               21
           Income Fund................................
                                                               22
           Total Return Bond Fund.....................
                                                               23
           Additional Investment Policies and Risk
           Considerations.............................
 
       4.  MANAGEMENT.................................         42
                                                               42
           Investment Advisory Services...............
                                                               44
           Management, Administration and Distribution
           Services...................................
                                                               45
           Shareholder Servicing and Custody..........
                                                               46
           Expenses of the Funds......................
 
       5.  CHOOSING A SHARE CLASS.....................         48
                                                               49
           A Shares...................................
                                                               53
           B Shares...................................
 
       6.  HOW TO BUY SHARES..........................         57
                                                               57
           Minimum Investment.........................
                                                               57
           Purchase Procedures........................
                                                               59
           Account Application........................
                                                               59
           General Information........................
 
       7.  HOW TO SELL SHARES.........................         60
                                                               60
           General Information........................
                                                               60
           Redemption Procedures......................
                                                               61
           Other Redemption Matters...................
 
       8.  OTHER SHAREHOLDER SERVICES.................         63
                                                               63
           Exchanges..................................
                                                               64
           Automatic Investment Plan..................
                                                               65
           Individual Retirement Accounts.............
                                                               65
           Automatic Withdrawal Plan..................
                                                               66
           Reopening Accounts.........................
 
       9.  DIVIDENDS AND TAX MATTERS..................         67
                                                               67
           Dividends..................................
                                                               67
           Tax Matters................................
 
      10.  OTHER INFORMATION..........................         69
                                                               69
           Banking Law Matters........................
                                                               69
           Determination of Net Asset Value...........
                                                               69
           Performance Information....................
                                                               70
           The Trust and Its Shares...................
                                                               71
           Core and Gateway Structure.................
</TABLE>
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                                OCTOBER 1, 1997
 
This Prospectus offers A Shares and B Shares of Stable Income Fund, Intermediate
Government Income Fund, Income Fund and Total Return Bond Fund (each a "Fund"
and collectively the "Funds"). The Funds are separate diversified fixed income
portfolios of Norwest Advantage Funds (the "Trust"), which is a registered,
open-end, management investment company.
 
STABLE INCOME FUND and TOTAL RETURN BOND FUND each seeks to achieve its
investment objective by investing all of its investable assets in a separate
portfolio of another registered, open-end, management investment company with
the same investment objective. See "Prospectus Summary" and "Other Information -
Core and Gateway-Registered Trademark- Structure."
 
INTERMEDIATE GOVERNMENT INCOME FUND and INCOME FUND each seeks to achieve its
investment objective by investing directly in portfolio securities.
 
This Prospectus sets forth concisely the information concerning the Trust and
the Funds that a prospective investor should know before investing. The Trust
has filed with the Securities and Exchange Commission (the "SEC") a Statement of
Additional Information ("SAI") dated October 1, 1997, as may be amended from
time to time, which is available for reference on the SEC's Web Site
(http.//www.sec.gov) and which contains more detailed information about the
Trust and each of the Funds and is incorporated into this Prospectus by
reference. An investor may obtain a copy of the SAI without charge by contacting
the Trust's distributor, Forum Financial Services, Inc., at Two Portland Square,
Portland, Maine 04101 or by calling (207) 879-0001. Investors should read this
Prospectus and retain it for future reference.
 
NORWEST ADVANTAGE FUNDS IS A FAMILY OF MUTUAL FUNDS. THE SHARES OF MUTUAL FUNDS
ARE NOT INSURED OR GUARANTEED BY THE U.S. GOVERNMENT, THE FDIC, THE FEDERAL
RESERVE SYSTEM OR ANY OTHER GOVERNMENT AGENCY. THE SHARES ALSO ARE NOT
OBLIGATIONS, DEPOSITS OR ACCOUNTS OF, OR ENDORSED OR GUARANTEED BY, NORWEST BANK
MINNESOTA, N.A. OR ANY OTHER BANK OR BANK AFFILIATE.
 
AN INVESTMENT IN SHARES OF ANY MUTUAL FUND IS SUBJECT TO INVESTMENT RISK,
INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
                                                                  1
<PAGE>

1.  PROSPECTUS SUMMARY

HIGHLIGHTS OF THE FUNDS

THE FOLLOWING SUMMARY IS QUALIFIED IN ITS ENTIRETY BY THE MORE DETAILED
INFORMATION CONTAINED IN THIS PROSPECTUS.

INVESTMENT OBJECTIVES AND POLICIES

STABLE INCOME FUND seeks to maintain safety of principal while providing
low-volatility total return. This objective is pursued by investing
primarily in short and intermediate maturity, investment grade fixed
income securities.

INTERMEDIATE GOVERNMENT INCOME FUND seeks to provide income and safety
of principal by investing primarily in U.S. Government Securities. This
objective is pursued by investing primarily in U.S. Government
Securities. The Fund seeks to moderate its volatility by using a
conservative approach to structuring the maturities of its investment
portfolio.

INCOME FUND seeks to provide total return consistent with current
income. This objective is pursued by investing in a portfolio of fixed
income securities issued by domestic and foreign issuers.

TOTAL RETURN BOND FUND seeks total return. This objective is pursued by
investing in a portfolio of U.S. Government and investment grade
corporate fixed income securities.

FUND STRUCTURES

STABLE INCOME FUND and TOTAL RETURN BOND FUND each seeks to achieve its
investment objective by investing all of its investable assets in a
separate portfolio (each a "Core Portfolio") of Core Trust (Delaware)
("Core Trust"), a registered, open-end, management investment company,
that has the same investment objective and substantially similar
investment policies as the Fund. Accordingly, the investment experience
of each of these Funds will correspond directly with the investment
experience of its corresponding Core Portfolio. (See "Other Information
- - Core and Gateway Structure.")  The Funds and the Core Portfolio in
which they invest are:

    FUND                        CORE PORTFOLIO
    ----                        --------------
    Stable Income Fund          Stable Income Portfolio
    Total Return Bond Fund      Total Return Bond Portfolio

INTERMEDIATE GOVERNMENT INCOME FUND and INCOME FUND each seek to achieve
its investment objective by investing directly in portfolio securities.

INVESTMENT ADVISERS

NORWEST INVESTMENT MANAGEMENT, INC. ("Norwest"), a subsidiary of Norwest
Bank Minnesota, N.A. ("Norwest Bank"), is each Fund's and each Core
Portfolio's investment adviser.  Norwest also is the investment adviser
of each Core Portfolio.  Norwest provides investment advice to various
institutions, pension plans and other accounts and as of August 31,
1997, managed over $22 billion in assets.  (See "Management - Investment
Advisory Services.")


2

<PAGE>

Norwest Bank serves as transfer agent, dividend disbursing agent and
custodian of the Trust and serves as the custodian of each Core
Portfolio.  (See "Management - Shareholder Servicing and Custody" and 
"-Management, Administration and Distribution Services.")

Stable Income Fund and Total Return Bond Fund each incur investment
advisory fees indirectly through the investment advisory fees paid by
their respective Core Portfolios; Norwest is paid an investment advisory
fee directly by each of Intermediate Government Income Fund and Income
Fund.

GALLIARD CAPITAL MANAGEMENT, INC. ("Galliard"), an investment advisory
subsidiary of Norwest Bank, is the investment subadviser of Stable
Income Portfolio.  Galliard provides investment advice regarding
advisory services to bank and thrift institutions, pension and profit
sharing plans, trusts and charitable organizations and corporate and
other business entities.  (See "Management - Investment Advisory
Services.")

UNITED CAPITAL MANAGEMENT, INC. ("UCM"), a part of Norwest Bank
Colorado, N.A. is the investment subadviser of Total Return Bond
Portfolio.  UCM provides specialized investment advisory services to
various institutional clients.  (See "Management - Investment Advisory
Services.")

Norwest, Galliard and UCM (or Norwest and a particular investment
subadvisor) are sometimes referred to collectively as the "Advisers."

FUND MANAGEMENT AND ADMINISTRATION

The manager of the Trust and distributor of its shares is Forum
Financial Services, Inc. ("Forum"), a registered broker-dealer and
member of the National Association of Securities Dealers, Inc.  Forum
Administrative Services, LLC ("FAS") provides administrative services to
the Funds and also serves as administrator of each Core Portfolio. (See
"Management - Management, Administration and Distribution Services.")

SHARES OF THE FUNDS

EACH FUND CURRENTLY OFFERS THREE SEPARATE CLASSES OF SHARES: A class 
("A Shares"), B class ("B Shares") and I class ("I Shares"). A Shares
and B Shares are sold through this Prospectus and are collectively
referred to as the "Shares."

     A SHARES. A Shares are offered at a price equal to their net asset 
     value plus a sales charge imposed at the time of purchase or, in some
     cases, a contingent deferred sales charge imposed on redemptions made 
     within two years of purchase.

     B SHARES. B Shares are offered at a price equal to their net asset 
     value plus a contingent deferred sales charge imposed on most 
     redemptions made within four years (two years in the case of Stable 
     Income Fund) of purchase. B Shares pay a distribution services fee 
     at an annual rate of up to 0.75%, and a maintenance fee in an 
     amount equal to 0.25%, of the B Shares' average daily net assets. B 
     Shares automatically convert to A Shares of the same Fund six years 
     (four years in the case of Stable Income Fund) 


                                                                            3

<PAGE>

     after the end of the calendar month in which the B Shares were
     originally purchased.

The choice of A Shares or B Shares permits each investor to purchase
those shares that the investor believes to be most beneficial given the
amount purchased, the length of time the investor expects to hold the
shares and other circumstances. A Shares will normally be more
beneficial to the investor who qualifies for reduced initial sales
charges. (See "Choosing a Share Class.")

I Shares are offered by a separate prospectus to fiduciary, agency and
custodial clients of bank trust departments, trust companies and their
affiliates. Shares of each class of a Fund have identical interests in
the investment portfolio of the Fund and, with certain exceptions, have
the same rights. (See "Other Information - The Trust and Its Shares.")

HOW TO BUY AND SELL SHARES

Shares may be purchased or redeemed by mail, by bank wire and through an
investor's broker-dealer or other financial institution. The minimum
initial investment in Shares is $1,000 ($5,000 in the case of Stable
Income Fund). The minimum subsequent investment is $100. (See "How to
Buy Shares" and "How to Sell Shares.")

EXCHANGES

Shareholders may exchange A Shares and B Shares for A Shares and 
B Shares, respectively, of certain other funds of the Trust. In
addition, A Shares may be exchanged for investor class shares of certain
money market funds of the Trust and B Shares may be exchanged for
exchange class shares of Ready Cash Investment Fund of the Trust. (See
"Other Shareholder Services - Exchanges.")

SHAREHOLDER FEATURES

Each Fund offers an Automatic Investment Plan, Automatic Withdrawal Plan
and Directed Dividend Option. Purchases of A Shares may be subject to
Rights of Accumulation, Cumulative Quantity Discounts or a Reinstatement
Privilege. (See "Other Shareholder Services" and "Choosing a Share
Class.")

DIVIDENDS AND DISTRIBUTIONS

Dividends of Stable Income Fund and Intermediate Government Income
Fund's net investment income are declared and paid monthly. Dividends of
Income Fund's and Total Return Bond Fund's net investment income are
declared daily and paid monthly. Each Fund's net capital gain, if any,
is distributed annually. All dividends and distributions are reinvested
in additional Fund shares unless the shareholder elects to have them
paid in cash. (See "Dividends and Tax Matters.")


4

<PAGE>

CERTAIN INVESTMENT CONSIDERATIONS 
AND RISK FACTORS

There can be no assurance that any Fund will achieve its investment
objective, and a Fund's net asset value and total return will fluctuate
based upon changes in the value of its portfolio securities. Upon
redemption, an investment in a Fund may be worth more or less than its
original value. The Funds' investments are subject to "credit risk"
relating to the financial condition of the issuers of the securities
that each Fund holds. Each Fund, however, invests only in investment
grade securities (those rated in the top four grades by a nationally
recognized statistical rating organization ("NRSRO") such as Standard &
Poor's).

All investments made by the Funds entail some risk. Certain investments
and investment techniques, however, entail additional risks, such as the
potential use of leverage by certain Funds through borrowings,
securities lending, swap transactions and other investment techniques.
(See "Investment Objectives and Policies - Additional Investment
Policies and Risk Considerations.") Similarly, a Fund's use of mortgage-
and asset-backed securities entails certain risks. (See "Investment
Objectives and Policies - Additional Investment Policies and Risk
Considerations - Mortgage-Backed Securities" and "- Asset-Backed
Securities.") The portfolio turnover rate for certain Funds may from
time to time be high, resulting in increased short-term capital gains or
losses. (See "Investment Objectives and Policies - Additional Investment
Policies and Risk Considerations - Portfolio Transactions.")

By pooling their assets in a Core Portfolio with other institutional
investors, STABLE INCOME FUND and TOTAL RETURN BOND FUND each may be
able to achieve certain efficiencies, economies of scale and enhanced
portfolio diversification.  Nonetheless, these investments could have
adverse effects on the Funds which investors should consider. 
Investment decisions are made by the portfolio managers of each Core
Portfolio independently.  Therefore the portfolio manager of one Core
Portfolio in which a Fund invests may purchase shares of the same issuer
whose shares are being sold by the portfolio manager of another Core
Portfolio in which the Fund invests.  This could result in an indirect
expense to the Fund without accomplishing any investment purpose.  (See
"Other Information - Core and Gateway Structure.")


                                                                             5

<PAGE>

EXPENSE INFORMATION

The purpose of the Shareholder Transaction Expenses and Annual Fund
Operating Expenses tables in this section is to assist investors in
understanding the expenses that an investor in Shares of a Fund will
bear directly or indirectly.

                       SHAREHOLDER TRANSACTION EXPENSES
                          (APPLICABLE TO EACH FUND)
<TABLE>
<CAPTION>
                                                                                         INTERMEDIATE       
                                                                                    GOVERNMENT INCOME FUND, 
                                                                 STABLE                 INCOME FUND AND     
                                                               INCOME FUND          TOTAL RETURN BOND FUND  
                                                          -----------------------   ----------------------- 
                                                              A            B            A            B      
                                                            SHARES       SHARES       SHARES       SHARES   
                                                          -----------------------   ----------------------- 
<S>                                                       <C>           <C>         <C>           <C>
Maximum sales charge imposed on purchases 
  (as a percentage of public offering price). . . . . . .   1.5%(1)     Zero          4.0%(1)     Zero      
Maximum deferred sales charge                                                                               
  (as a percentage of the lesser of original purchase                                                       
  price or redemption proceeds) . . . . . . . . . . . . .   Zero(2)     1.5%(1)(3)    Zero(2)     4.0%(1)(3)
Exchange Fee. . . . . . . . . . . . . . . . . . . . . . .   Zero        Zero          Zero        Zero      

</TABLE>

                      ANNUAL FUND OPERATING EXPENSES (4)
        (AS A PERCENTAGE OF AVERAGE DAILY NET ASSETS AFTER APPLICABLE 
                   FEE WAIVERS AND EXPENSE REIMBURSEMENTS)

<TABLE>
<CAPTION>
                                                                            INTERMEDIATE
                                                            STABLE           GOVERNMENT                           TOTAL RETURN
                                                          INCOME FUND        INCOME FUND        INCOME FUND       BOND FUND (7)
                                                        ----------------   ----------------   ----------------   ----------------
                                                          A         B        A         B        A         B        A         B   
                                                        SHARES    SHARES   SHARES    SHARES   SHARES    SHARES   SHARES    SHARES
                                                        ----------------   ----------------   ----------------   ----------------
<S>                                                     <C>       <C>      <C>       <C>      <C>       <C>      <C>       <C>
Investment Advisory Fees(5) . . . . . . . . . . . . . .   N/A       N/A     0.33%     0.33%    0.50%     0.50%     N/A       N/A 
Rule 12b-1 Fees (after fee waivers)(6). . . . . . . . .   N/A      0.75%     N/A      0.75%     N/A      0.75%     N/A      0.75%
Other Expenses (after fee waivers and reimbursements) .  0.28%     0.28%    0.35%     0.35%    0.25%     0.25%    0.36%     0.36%
Investment Advisory Fees -- Core Portfolio(5) . . . . .  0.30%     0.30%     N/A       N/A      N/A       N/A     0.35%     0.35%
Other Expenses -- Core Portfolio
  (after fee waivers and reimbursements). . . . . . . .  0.07%     0.07%     N/A       N/A      N/A       N/A     0.04%     0.04%
                                                        ----------------   ----------------   ----------------   ----------------
Total Operating Expenses(8) . . . . . . . . . . . . . .  0.65%     1.40%    0.68%     1.43%    0.75%     1.50%    0.75%     1.50%
</TABLE>

(1) Sales charge waivers and reduced sales charge plans are available for A 
    and B Shares. See "Choosing a Share Class".

(2) If A Shares of a Fund (other than Stable Income Fund) purchased without 
    an initial sales charge (purchases of $1,000,000 or more) are redeemed 
    within two years after purchase, a deferred sales charge of up to 0.75% 
    will be applied to the redemption.  If A  Shares of Stable Income Fund 
    purchased without an initial sales charge (purchases of $1,000,000 or 
    more) are redeemed within two years after purchase, a deferred sales 
    charge of up to 0.50% will be applied to the redemption.

(3) The maximum 4.0% deferred sales charge on B Shares of a Fund (other than
    Stable Income Fund) applies to redemptions during the first year after 
    purchase; the charge declines thereafter, and is 3.0% during the second 
    and third years, 2.0% during the fourth and fifth years, 1.0% during the 
    sixth year, and zero the following year. The maximum 1.5% deferred sales 
    charge on B Shares of Stable Income Fund applies to redemptions during 
    the first year after purchase; the charge declines thereafter, and is 
    0.75% during the second year and zero the following year.

(4) For a further description of the various expenses associated with 
    investing in the Funds, see "Management."  Expenses associated with 
    I Shares of a Fund differ from those listed in the table.  The table is 
    based on amounts incurred during the Funds' most recent fiscal year ended
    May 31, 1997 restated to reflect current fees. Stable Income Fund and 
    Total Return Bond Fund indirectly bear their pro rata portion of the 
    expenses of the Core Portfolios in which they invest.

(5) For Stable Income Fund and Total Return Bond Fund, "Investment Advisory 
    Fees - Core Portfolio" reflects the investment advisory fees incurred by
    the Core Portfolio in which the Fund invests. 

(6) Absent waivers, "Rule 12b-1 Fees" would be 1.00% for B Shares of each 
    Fund.  Long-term shareholders of B Shares may pay Rule 12b-1 Fees and 
    contingent deferred sales charges totaling in the aggregate more than 
    the economic equivalent of the maximum front-end sales charges permitted by
    the rules of the National Association of Securities Dealers, Inc.


6                                                                             7

<PAGE>

(7) Norwest and Forum have agreed to waive their respective fees or
    reimburse expenses in order to maintain Total Return Bond Fund's
    total operating expenses through May 31, 1998 at or below 0.75% for
    A Shares and 1.50% for B Shares.

(8) Absent expense reimbursements and fee waivers, the expenses of A
    Shares of Stable Income Fund, Intermediate Government Income Fund,
    Income Fund and Total Return Bond Fund would be: "Other Expenses,"
    0.46%, 0.48%, 0.58% and 0.55%, respectively; "Other Expenses - Core
    Portfolio," 0.12%, N/A, N/A and 0.09%, respectively; and "Total
    Operating Expenses," 0.88%, 0.81%,1.08% and 0.99%, respectively. 
    Absent expense reimbursements and fee waivers, the expenses of B
    Shares of Stable Income Fund, Intermediate Government Income Fund,
    Income Fund and Total Return Bond Fund would be: "Other Expenses,"
    1.17%, 0.53%, 0.65% and 0.66%, respectively; "Other Expenses -- Core
    Portfolio," 0.12%, N/A, N/A and 0.09%, respectively; and "Total
    Operating Expenses," 2.59%, 1.86%, 2.15% and 2.10%, respectively. 
    Except as otherwise noted, expense reimbursements and fee waivers
    are voluntary and may be reduced or eliminated at any time.

EXAMPLE

The following Hypothetical Expense Example indicates the dollar 
amount of expenses that an investor would pay, assuming a $1,000 
investment in a Fund's Shares, the expenses listed in the "Annual 
Fund Operating Expenses" table, a 5% annual return, reinvestment of 
all dividends and distributions, the deduction of the maximum 
initial sales charge for A Shares, the deduction of the applicable 
contingent deferred sales charge for B Shares applicable to a 
redemption at the end of the period and the conversion of B Shares 
to A Shares at the end of six years (four years in the case of 
Stable Income Fund). THE EXAMPLE SHOULD NOT BE CONSIDERED A 
REPRESENTATION OF PAST OR FUTURE EXPENSES OR RETURN.  ACTUAL 
EXPENSES AND RETURN MAY BE GREATER OR LESS THAN INDICATED. The 5% 
annual return is not predictive of and does not represent the 
Funds' projected returns; rather, it is required by government 
regulation.                                        


8

<PAGE>

                       HYPOTHETICAL EXPENSE EXAMPLE


                                        1 YEAR   3 YEARS   5 YEARS   10 YEARS
                                       --------------------------------------
STABLE INCOME FUND
   A Shares. . . . . . . . . . . . . .    22        35        51        95
   B Shares
        Assuming redemption 
          at the end of the period . .    29        44        --        --
        Assuming no redemption . . . .    14        44        --        --
                                       --------------------------------------

INTERMEDIATE GOVERNMENT INCOME FUND
   A Shares. . . . . . . . . . . . . .    47        61        76       121
   B Shares
        Assuming redemption 
          at the end of the period . .    55        75        98        --
        Assuming no redemption . . . .    15        45        78        --
                                       --------------------------------------

INCOME FUND
   A Shares. . . . . . . . . . . . . .    47        63        80       129
   B Shares                            
        Assuming redemption            
          at the end of the period . .    55        77       102        --
        Assuming no redemption . . . .    15        47        82        --
                                       --------------------------------------

TOTAL RETURN BOND FUND
   A Shares. . . . . . . . . . . . . .    47        63        80       129
   B Shares                            
        Assuming redemption            
          at the end of the period . .    55        77       102        --
        Assuming no redemption . . . .    15        47        82        --


                                                                            9

<PAGE>

2.  FINANCIAL HIGHLIGHTS

The following tables provide financial highlights for each Fund. This 
information represents selected data for a single outstanding A and B Share 
of each Fund for the periods shown. Information for the periods ended May 31, 
1994, and thereafter was audited by KPMG Peat Marwick LLP, independent 
auditors. Information for prior periods was audited by other independent 
auditors. Each Fund's financial statements for the fiscal year ended May 31, 
1997, and independent auditors' report thereon, are contained in the Fund's 
Annual Report. These financial statements are incorporated by reference into 
the SAI. Further information about each Fund's performance is contained in 
the Fund's Annual Report, which may be obtained from the Trust without charge.


                     STABLE INCOME FUND
<TABLE>
<CAPTION>
                                                                NET
                                                            REALIZED AND 
                                  BEGINNING                  UNREALIZED      DIVIDENDS    DISTRIBUTIONS
                                  NET ASSET       NET           GAIN         FROM NET       FROM NET
                                    VALUE      INVESTMENT    (LOSS) ON      INVESTMENT      REALIZED   
                                  PER SHARE      INCOME     INVESTMENTS       INCOME          GAIN  
- -------------------------------------------------------------------------------------------------------
<S>                               <C>          <C>           <C>            <C>            <C>
A SHARES
June 1, 1996 to May 31, 1997       $10.20        $0.58         $0.04          ($0.58)            --
May 2, 1996 to May 31, 1996(a)     $10.22        $0.02            --          ($0.04)            --
B SHARES
June 1, 1996 to May 31, 1997       $10.20        $0.52         $0.02          ($0.50)            --
May 17, 1996 to May 31, 1996(a)    $10.23        $0.02        ($0.01)         ($0.04)            --
- -------------------------------------------------------------------------------------------------------
<CAPTION>
                                                       RATIO TO AVERAGE NET ASSETS
                                               ------------------------------------------
                                   ENDING                                                                             NET ASSETS 
                                  NET ASSET       NET                                                    PORTFOLIO    AT  END OF 
                                    VALUE      INVESTMENT        NET             GROSS         TOTAL      TURNOVER      PERIOD 
                                  PER SHARE      INCOME        EXPENSES       EXPENSES(b)    RETURN(c)      RATE    (000'S OMITTED)
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                               <C>            <C>            <C>            <C>            <C>         <C>        <C>
A SHARES
June 1, 1996 to May 31, 1997       $10.24         5.69%         0.65%           0.87%          6.24%       41.30%       $12,451
May 2, 1996 to May 31, 1996(a)     $10.20         5.77%(d)      0.70%(d)        2.22%(d)       0.23%      109.95%       $16,256
B SHARES
June 1, 1996 to May 31, 1997       $10.24         4.96%         1.39%           2.89%          5.43%       41.30%        $1,056
May 17, 1996 to May 31, 1996(a)    $10.20         5.02%(d)      1.42%(d)        3.07%(d)       0.12%      109.95%          $867
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

(a) The Fund commenced the offering of A Shares on May 2, 1996 and B Shares on
    May 17, 1996.

(b) The ratio of Gross Expenses to Average Net Assets does not reflect fee
    waivers or expense reimbursements.

(c) Total Return does not include the effects of sales charges.

(d)  Annualized


10                                                                           11

<PAGE>

               INTERMEDIATE GOVERNMENT INCOME FUND

<TABLE>
<CAPTION>
                                                              NET
                                                          REALIZED AND
                                   BEGINNING               UNREALIZED    DIVIDENDS  DISTRIBUTIONS   ENDING
                                   NET ASSET     NET          GAIN       FROM NET     FROM NET     NET ASSET
                                     VALUE    INVESTMENT   (LOSS) ON    INVESTMENT    REALIZED       VALUE
                                   PER SHARE    INCOME    INVESTMENTS     INCOME        GAIN       PER SHARE
- --------------------------------------------------------------------------------------------------------------
<S>                                <C>        <C>         <C>           <C>         <C>            <C>
A SHARES
June 1, 1996 to May 31, 1997         $10.89     $0.73       ($0.05)       ($0.73)        --          $10.84   
May 2, 1996 to May 31, 1996(a)       $10.89     $0.03          --         ($0.03)        --          $10.89   
B SHARES
June 1, 1996 to May 31, 1997         $10.89     $0.64       ($0.05)       ($0.65)        --          $10.83   
May 17, 1996 to May 31, 1996(a)      $10.97     $0.03       ($0.08)       ($0.03)        --          $10.89   
- --------------------------------------------------------------------------------------------------------------
<CAPTION>
                                      RATIO TO AVERAGE NET ASSETS
                                   ----------------------------------                             NET ASSETS
                                      NET                                            PORTFOLIO    AT END OF
                                   INVESTMENT    NET        GROSS        TOTAL       TURNOVER       PERIOD
                                     INCOME    EXPENSES   EXPENSES(b)   RETURN(c)      RATE    (OOO'S OMITTED)
- --------------------------------------------------------------------------------------------------------------
<S>                                <C>         <C>        <C>            <C>        <C>        <C>
A SHARES            
June 1, 1996 to May 31, 1997        6.58%      0.68%        0.80%         6.36%       183.05%      $13,038 
May 2, 1996 to May 31, 1996(a)      7.32%(d)   0.75%(d)     1.74%(d)      0.26%        74.64%      $16,562 
B SHARES                                                                    
June 1, 1996 to May 31, 1997        5.80%      1.42%        1.85%         5.51%       183.05%       $8,970
May 17, 1996 to May 31, 1996(a)     5.56%(d)   1.35%(d)     2.65%(d)     (0.49%)       74.64%      $10,682
- --------------------------------------------------------------------------------------------------------------
</TABLE>

(a)  The Fund commenced the offering of A Shares on May 2, 1996 and B Shares on 
     May 17, 1996.

(b)  The ratio of Gross Expenses to Average Net Assets does not reflect fee 
     waivers or expense reimbursements.

(c)  Total Return does not include the effects of sales charges.

(d)  Annualized


12                                                                           13
<PAGE>

                INCOME FUND

<TABLE>
<CAPTION>
                                                                      NET
                                                                  REALIZED AND
                                                                   UNREALIZED       DIVIDENDS   DISTRIBUTIONS      ENDING   
                                     BEGINNING NET       NET          GAIN          FROM NET       FROM NET      NET ASSET  
                                      ASSET VALUE     INVESTMENT   (LOSS) ON       INVESTMENT      REALIZED      VALUE PER  
                                       PER SHARE        INCOME    INVESTMENTS        INCOME          GAIN          SHARE    
- ----------------------------------------------------------------------------------------------------------------------------
<S>                                  <C>              <C>            <C>             <C>
A SHARES
June 1, 1996 to May 31, 1997             $9.27           $0.62          --           ($0.62)          --           $9.27
June 1, 1995 to May 31, 1996             $9.63           $0.61       ($0.36)         ($0.61)          --           $9.27
June 1, 1994 to May 31, 1995             $9.52           $0.65        $0.11          ($0.65)          --           $9.63
June 1, 1993 to May 31, 1994            $10.61           $0.70       ($0.83)         ($0.70)       ($0.26)         $9.52
June 1, 1992 to May 31, 1993            $10.52           $0.77        $0.39          ($0.77)       ($0.30)        $10.61
June 1, 1991 to May 31, 1992            $10.23           $0.82        $0.53          ($0.82)       ($0.24)        $10.52
June 1, 1990 to May 31, 1991             $9.94           $0.89        $0.29          ($0.89)          --          $10.23
June 1, 1989 to May 31, 1990            $10.00           $0.90       ($0.06)         ($0.90)          --           $9.94
June 1, 1988 to May 31, 1989             $9.95           $0.79        $0.05          ($0.79)          --          $10.00
June 9, 1987 to May 31, 1988(a)         $10.00           $0.66        $0.05          ($0.66)          --           $9.95
B SHARES                                                                                                       
June 1, 1996 to May 31, 1997             $9.26           $0.55          --           ($0.55)          --           $9.26
June 1, 1995 to May 31, 1996             $9.61           $0.54       ($0.35)         ($0.54)          --           $9.26
June 1, 1994 to May 31, 1995             $9.51           $0.58        $0.10          ($0.58)          --           $9.61
August 5, 1993 to May 31, 1994(a)       $10.67           $0.50       ($0.90)         ($0.50)       ($0.26)         $9.51
- ----------------------------------------------------------------------------------------------------------------------------
<CAPTION>

                                            RATIO TO AVERAGE NET ASSETS
                                      ----------------------------------------                                 NET ASSETS
                                         NET                                                      PORTFOLIO     AT END OF
                                      INVESTMENT         NET         GROSS           TOTAL        TURNOVER        PERIOD
                                        INCOME         EXPENSES    EXPENSES(b)      RETURN(c)       RATE     (OOO'S OMITTED)
- ----------------------------------------------------------------------------------------------------------------------------
<S>                                   <C>              <C>         <C>              <C>           <C>        <C>            
A SHARES
June 1, 1996 to May 31, 1997             6.59%           0.75%        1.17%            6.79%       231.00%        $5,142
June 1, 1995 to May 31, 1996             6.33%           0.75%        1.16%            2.58%       270.17%        $5,521
June 1, 1994 to May 31, 1995             7.02%           0.75%        1.24%            8.49%        98.83%        $6,231
June 1, 1993 to May 31, 1994             6.72%           0.60%        1.16%           (1.58%)       26.67%        $6,177
June 1, 1992 to May 31, 1993             7.18%           0.60%        1.10%           11.46%        87.98%       $85,252
June 1, 1991 to May 31, 1992             7.80%           0.31%        1.08%           13.58%        84.24%       $63,973
June 1, 1990 to May 31, 1991             8.82%           0.16%        1.11%           12.38%        61.33%       $50,138
June 1, 1989 to May 31, 1990             8.98%           0.19%        1.13%            8.71%        43.81%       $37,932
June 1, 1988 to May 31, 1989             8.62%           0.07%        1.10%            8.78%        48.08%       $27,939
June 9, 1987 to May 31, 1988(a)          6.92%(d)        0.70%(d)     2.28%(d)         6.45%(d)      0.00%        $2,279
B SHARES                                               
June 1, 1996 to May 31, 1997             5.87%           1.50%        2.25%            6.03%       231.00%        $3,349
June 1, 1995 to May 31, 1996             5.57%           1.50%        2.27%            1.92%       270.17%        $3,292
June 1, 1994 to May 31, 1995             6.24%           1.50%        2.21%            7.57%        98.83%        $3,296
August 5, 1993 to May 31, 1994(a)        5.82%(d)        1.33%(d)     2.08%(d)        (4.82%)(d)    26.67%        $2,605
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

(a) The Fund commenced operations on June 9, 1987.  The Fund's original class 
    of shares subsequently became A Shares.  The Fund commenced the offering 
    of B Shares on August 5, 1993.

(b) The ratio of Gross Expenses to Average Net Assets does not reflect fee 
    waivers or expense reimbursements.

(c) Total Return does not include the effects of sales charges.

(d) Annualized.


14                                                                           15

<PAGE>

               TOTAL RETURN BOND FUND

<TABLE>
<CAPTION>
                                                                      NET
                                                                  REALIZED AND
                                                                   UNREALIZED       DIVIDENDS   DISTRIBUTIONS      ENDING   
                                     BEGINNING NET       NET          GAIN          FROM NET       FROM NET      NET ASSET  
                                      ASSET VALUE     INVESTMENT   (LOSS) ON       INVESTMENT      REALIZED      VALUE PER  
                                       PER SHARE        INCOME    INVESTMENTS        INCOME          GAIN          SHARE    
- ----------------------------------------------------------------------------------------------------------------------------
<S>                                  <C>              <C>         <C>              <C>          <C>              <C>
A SHARES
June 1, 1996 to May 31, 1997             $9.40           $0.60       $0.03          ($0.60)        ($0.03)         $9.40    
June 1, 1995 to May 31, 1996             $9.73           $0.64      ($0.31)         ($0.64)        ($0.02)         $9.40    
June 1, 1994 to May 31, 1995             $9.54           $0.67       $0.19          ($0.67)           --           $9.73    
December 31, 1993 to May 31, 1994(a)    $10.00           $0.27      ($0.46)         ($0.27)           --           $9.54    
B SHARES
June 1, 1996 to May 31, 1997             $9.40           $0.53       $0.05          ($0.53)        ($0.03)         $9.42    
June 1, 1995 to May 31, 1996             $9.73           $0.57      ($0.31)         ($0.57)        ($0.02)         $9.40    
June 1, 1994 to May 31, 1995             $9.54           $0.59       $0.19          ($0.59)           --           $9.73    
December 31, 1993 to May 31, 1994(a)    $10.00           $0.24      ($0.46)         ($0.24)           --           $9.54    
- ----------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                            RATIO TO AVERAGE NET ASSETS
                                      ----------------------------------------                                 NET ASSETS
                                         NET                                                      PORTFOLIO     AT END OF
                                      INVESTMENT         NET         GROSS           TOTAL        TURNOVER        PERIOD
                                        INCOME         EXPENSES    EXPENSES(b)      RETURN(c)       RATE     (OOO'S OMITTED)
- ----------------------------------------------------------------------------------------------------------------------------
<S>                                   <C>              <C>         <C>              <C>           <C>        <C>            
A SHARES
June 1, 1996 to May 31, 1997            6.37%           0.75%        1.31%            6.84%        55.07%         $3,086
June 1, 1995 to May 31, 1996            6.48%           0.76%        1.57%            3.41%        77.49%         $2,010
June 1, 1994 to May 31, 1995            6.94%           0.64%        2.38%            9.42%        35.19%           $599
December 31, 1993 to May 31, 1994(a)    6.04%(d)        0.37%(d)    13.29%(d)        (4.64%)(d)    37.50%           $150
B SHARES
June 1, 1996 to May 31, 1997            5.61%           1.49%        2.37%            6.27%        55.07%         $2,254
June 1, 1995 to May 31, 1996            5.75%           1.51%        2.48%            2.63%        77.49%         $2,098
June 1, 1994 to May 31, 1995            6.17%           1.41%        3.09%            8.59%        35.19%           $919
December 31, 1993 to May 31, 1994(a)    5.40%(d)        1.11%(d)     8.29%(d)        (5.23%)(d)    37.50%           $186
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

(a) The Fund commenced operations and the offering of A Shares and B Shares 
    on December 31, 1993.

(b) The ratio of Gross Expenses to Average Net Assets does not reflect fee 
    waivers or expense reimbursements.

(c) Total Return does not include the effects of sales charges.

(d) Annualized.


16                                                                           17
<PAGE>
- ----
- ----
 
3.INVESTMENT OBJECTIVES AND POLICIES
 
STABLE INCOME FUND
 
INVESTMENT OBJECTIVE. The investment objective of the Fund is to maintain safety
of principal while providing low-volatility total return. The Fund currently
pursues its investment objective by investing all of its investable assets in
Stable Income Portfolio, which has the same investment objective and
substantially similar investment policies as the Fund. Therefore, although the
following discusses the investment policies of that Portfolio, it applies
equally to the Fund. There can be no assurance that the Fund or Stable Income
Portfolio will achieve its investment objective.
 
INVESTMENT POLICIES. The Portfolio seeks to maintain safety of principal while
providing low volatility total return by investing primarily in investment grade
short-term obligations. The Portfolio invests in a diversified portfolio of
fixed and variable rate U.S. dollar denominated fixed income securities of a
broad spectrum of United States and foreign issuers, including U.S. Government
Securities and the debt securities of financial institutions, corporations, and
others.
 
The securities in which the Portfolio invests include mortgage-backed and other
asset-backed securities, although the Portfolio limits these investments to not
more than 60 percent and 25 percent, respectively, of its total assets. In
addition, the Portfolio limits its holdings of mortgage-backed securities that
are not U.S. Government Securities to 25 percent of its total assets. The
Portfolio may invest any amount of its assets in U.S. Government Securities, but
under normal circumstances less than 50 percent of the Portfolio's total assets
are so invested. The Portfolio may invest in securities that are restricted as
to disposition under the federal securities laws (sometimes referred to as
"private placements" or "restricted securities"). In addition, the Portfolio may
not invest more than 25 percent of its total assets in the securities issued or
guaranteed by any single agency or instrumentality of the U.S. Government,
except the U.S. Treasury, and may not invest more than 10 percent of its total
assets in the securities of any other issuer.
 
The Portfolio only purchases those securities that are rated, at the time of
purchase, within the three highest long-term or two highest short-term rating
categories assigned by an NRSRO, such as Moody's Investors Service, Standard &
Poor's or Fitch Investors Service, L.P., or which are unrated and determined by
Norwest to be of comparable quality. (See "Additional Investment Policies and
Risk Considerations - Rating Matters.")
 
                                       18
<PAGE>
- ----
- ----
 
The Portfolio invests in debt obligations with maturities (or average life in
the case of mortgage-backed and similar securities) ranging from short-term
(including overnight) to 12 years and seeks to maintain an average dollar-
weighted portfolio maturity of between 2 and 5 years.
 
In order to manage its exposure to different types of investments, the Portfolio
may enter into interest rate and mortgage swap agreements and may purchase and
sell interest rate caps, floors and collars. The Portfolio may also engage in
certain strategies involving options (both exchange-traded and over-the-counter)
to attempt to enhance the Portfolio's income and may attempt to reduce the
overall risk of its investments or limit the uncertainty in the level of future
foreign exchange rates ("hedge") by using options and futures contracts and
foreign currency forward contracts. The Portfolio's ability to use these
strategies may be limited by market considerations, regulatory limits and tax
considerations. The Portfolio may write covered call and put options, buy put
and call options, buy and sell interest rate and foreign currency futures
contracts and buy options and write covered options on those futures contracts.
An option is covered if, so long as the Portfolio is obligated under the option,
it owns an offsetting position in the underlying security or futures contract or
maintains a segregated account of liquid debt instruments with a value at all
times sufficient to cover the Portfolio's obligations under the option.
 
INTERMEDIATE GOVERNMENT
INCOME FUND
 
INVESTMENT OBJECTIVE. The investment objective of the Fund is to provide income
and safety of principal by investing primarily in U.S. Government Securities.
There can be no assurance that the Fund will achieve its investment objective.
 
INVESTMENT POLICIES. The Fund seeks to attain its investment objective by
investing primarily in fixed and variable rate U.S. Government Securities. Under
normal circumstances, the Fund intends to invest at least 65 percent of its
assets in U.S. Government Securities and may invest up to 35 percent of its
assets in fixed income securities that are not U.S. Government Securities. The
Fund emphasizes the use of intermediate maturity securities to lessen interest
rate risk, while employing low risk yield enhancement techniques, such as
investment in adjustable rate securities and swap agreements, to add to the
Fund's return over a complete economic or interest rate cycle.
 
The Fund invests in mortgage-backed and other asset-backed securities, although
the Fund limits these investments to not more than 50 percent and 25 percent,
respectively, of its total assets. As part of its mortgage-backed securities
investments, the Fund may enter into "dollar roll" transactions. Certain fixed
income securities are zero-coupon securities and the Fund will
 
                                                                  19
<PAGE>
- ----
- ----
limit its investment in these securities, except those issued through the U.S.
Treasury's STRIPS program, to not more than 10 percent of the Fund's total
assets. The Fund may also invest in securities that are restricted as to
disposition under the federal securities laws (sometimes referred to as "private
placements" or "restricted securities"). In addition, the Fund may not invest
more than 25 percent of its total assets in securities issued or guaranteed by
any single agency or instrumentality of the U.S. Government, except the U.S.
Treasury. The Fund may make short sales and may purchase securities on margin
(borrow money in order to purchase securities), which are considered speculative
investment techniques.
 
The Fund will only purchase securities that are rated, at the time of purchase,
within the two highest rating categories assigned by an NRSRO, such as Moody's
Investors Service, Standard & Poor's or Fitch Investors Service, L.P., or which
are unrated and determined by Norwest to be of comparable quality. (See
"Additional Investment Policies and Risk Considerations - Rating Matters.")
 
The Fund primarily will invest in debt obligations with maturities (or average
life in the case of mortgage-backed and similar securities) ranging from short-
term (including overnight) to 15 years. Under normal circumstances, the Fund's
portfolio of securities will have an average dollar-weighted maturity of between
3 and 10 years. Under normal circumstances, the Fund's portfolio of securities
will have a duration of between 70 percent and 130 percent of the duration of a
5-year Treasury Note, which is used as the Fund's benchmark index as described
under "Other Information - Performance Information." Duration is a measure of a
debt security's average life that reflects the present value of the security's
cash flow and, accordingly, is a measure of price sensitivity to interest rate
changes ("duration risk"). Because earlier payments on a debt security have a
higher present value, duration of a security, except a zero-coupon security,
will be less than the security's stated maturity.
 
In order to manage its exposure to different types of investments, the Fund may
enter into interest rate and mortgage swap agreements and may purchase and sell
interest rate caps, floors and collars. The Fund may also engage in certain
strategies involving options (both exchange-traded and over-the-counter) to
attempt to enhance the Fund's return and may attempt to reduce the overall risk
of its investments ("hedge") by using options and futures contracts. The Fund's
ability to use these strategies may be limited by market considerations,
regulatory limits and tax considerations. The Fund may write covered call and
put options, buy put and call options, buy and sell interest rate futures
contracts, and buy options and write covered options on those futures contracts.
An option is covered if, so long as the Fund is obligated under the option, it
owns an offsetting position in the underlying security or
 
                                       20
<PAGE>
- ----
- ----
futures contract or maintains a segregated account of liquid debt instruments
with a value at all times sufficient to cover the Fund's obligations under the
option.
 
INCOME FUND
 
INVESTMENT OBJECTIVE. The investment objective of the Fund is to provide total
return consistent with current income. The Fund pursues this objective by
investing in a portfolio of fixed income securities issued by domestic and
foreign issuers. There can be no assurance that the Fund will achieve its
investment objective.
 
INVESTMENT POLICIES. The Fund seeks to attain its investment objective by
investing in a diversified portfolio of fixed and variable rate U.S. dollar
denominated fixed income securities. These securities cover a broad spectrum of
United States issuers, including U.S. Government Securities, mortgage- and
asset-backed securities and the debt securities of financial institutions,
corporations, and others. Norwest attempts to increase the Fund's performance by
applying various fixed income management techniques combined with fundamental
economic, credit and market analysis while at the same time controlling total
return volatility by targeting the Fund's duration within a narrow band around
the Lehman Brothers Aggregate Index, an unmanaged index of fixed income
securities.
 
The Fund may invest any amount of its assets, and normally will invest at least
30% of its total assets, in U.S. Government Securities. The fixed income
securities in which the Fund invests also include mortgage-backed and other
asset-backed securities, although the Fund limits these investments to not more
than 50% and 25%, respectively, of its total assets. The Fund may invest up to
50% of its total assets in corporate securities, such as bonds, debentures and
notes and fixed income securities that can be converted into or exchanged for
common stocks ("convertible securities") and may invest in zero coupon
securities and enter into "dollar roll" transactions. The Fund may invest in
securities that are restricted as to disposition under the federal securities
laws (sometimes referred to as "private placements" or "restricted securities").
 
To limit credit risk, generally the Fund will only purchase securities that are
rated, at the time of purchase, within the four highest rating categories
assigned by an NRSRO, such as Moody's Investors Service ("Moody's"), Standard &
Poor's or Fitch Investors Service, L.P., or which are unrated and determined by
Norwest to be of comparable quality. Securities rated in these categories are
generally considered to be investment grade securities, although Moody's
indicates that securities rated Baa (the fourth highest category) have
speculative characteristics. A description of the rating categories of various
NRSROs is contained in the SAI of the Fund.
 
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The Fund may from time to time invest in securities rated below investment
grade. Such securities (commonly referred to as "junk bonds") have speculative
or predominantly speculative characteristics. The Fund will not purchase a
security rated below the sixth highest rating category by an NRSRO ("B" by
Moody's, Standard & Poor's or Fitch). (See the SAI for additional information
about junk bonds.)
 
The Fund will invest primarily in securities with maturities (or average life in
the case of mortgage-backed and similar securities) ranging from short-term
(including overnight) to 40 years, and it is anticipated that the Fund's
portfolio of securities will have an average dollar-weighted maturity of between
3 and 15 years. The Fund's portfolio of securities will normally have a duration
of between 70% and 130% of the duration of the Lipper Corporate A-Rated Debt
Average. Duration is a measure of a debt security's average life that reflects
the present value of the security's cash flow and, accordingly, is a measure of
price sensitivity to interest rate changes ("duration risk"). Because earlier
payments on a debt security have a higher present value, duration of a security,
except a zero-coupon security, will be less than the security's stated maturity.
 
The Fund may invest in debt securities registered and sold in the United States
by foreign issuers (Yankee Bonds) and debt securities sold outside the United
States by foreign or U.S. issuers (Euro-bonds). The Fund intends to restrict its
purchases of debt securities to issues denominated and payable in United States
dollars. For a description of the risks involved in investments in foreign
securities, see "Investment Objectives and Policies - Additional Investment
Policies and Risk Consideration - Foreign Securities."
 
TOTAL RETURN BOND FUND
 
INVESTMENT OBJECTIVE. The investment objective of the Fund is to seek total
return. The Fund currently pursues its investment objective by investing all of
its investable assets in Total Return Bond Portfolio, which has the same
investment objective and substantially identical investment policies as the
Fund. Therefore, although the following discusses the investment policies of
that Portfolio, it applies equally to the Fund. There can be no assurance that
the Fund will achieve its investment objective.
 
INVESTMENT POLICIES. The Portfolio invests primarily in U.S. Government
Securities, including mortgage-backed securities and investment grade corporate
fixed income securities. Norwest's investment decisions are based on its
analysis of major changes in the direction of interest rates rather than an
attempt by Norwest to predict short-term interest rate fluctuations. Norwest
also applies a contrarian perspective by looking for undervalued segments of the
fixed income market which Norwest believes offer opportunities for increased
returns.
 
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In making its investment decisions for the Portfolio, Norwest focuses on the
maturity structure and quality structure of the Portfolio's portfolio. When
Norwest's outlook is for rising interest rates and falling bond values, the
majority of the Portfolio's investment portfolio will be invested in securities
with short-term maturities in an effort to ride interest rates up while
minimizing the negative effect of falling bond prices. When Norwest anticipates
interest rates to fall and bond prices increase, the Portfolio generally will be
invested in securities with long-term maturities in an attempt to lock in high
interest rates and capitalize on bond price appreciation. Accordingly, the
average maturity of the Portfolio's portfolio will vary from 1 to 30 years.
 
The Portfolio may invest an unlimited amount of its assets in either corporate
securities, including corporate bonds, debentures and notes, or U.S. Government
Securities. The Portfolio will be invested to a greater degree in corporate
securities, however, as the spread between corporate and U.S. Government issues
offers potential for incremental returns. The Portfolio limits its investments
in variable or floating rate securities to 5 percent of its net assets. The
Portfolio does not currently invest in mortgage-backed securities or enter
"dollar roll" transactions, but reserves the right to do so in the future.
 
The Portfolio may also invest in preferred stocks and securities convertible
into common stock, but may not own the common stock into which a convertible
security converts. The Portfolio will only purchase securities (including
convertible securities) that are rated, at the time of purchase, within the four
highest rating categories assigned by an NRSRO, such as Moody's Investors
Service ("Moody's"), Standard & Poor's or Fitch Investors Service, L.P., or
which are unrated and determined by Norwest to be of comparable quality.
Securities rated in these categories are generally considered to be investment
grade securities, although Moody's indicates that securities rated Baa (the
fourth highest category) have speculative characteristics. A description of the
rating categories of various NRSROs is contained in the SAI of the Portfolio.
 
The Fund reserves the right, upon notice to shareholders, to invest all or a
portion of its assets in shares of another diversified, open-end management
investment company that has an investment objective and investment policies
substantially similar to its own.
 
ADDITIONAL INVESTMENT POLICIES
AND RISK CONSIDERATIONS
 
Each Fund's (and each Core Portfolio's) investment objective and all investment
policies of the Funds (and Core Portfolios) that are designated as fundamental
may not be changed without approval of the holders of a majority of the
outstanding voting securities of the Fund (or Core Portfolio).
 
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A majority of outstanding voting securities means the lesser of 67% of the
shares present or represented at a shareholders' meeting at which the holders of
more than 50% of the outstanding shares are present or represented, or more than
50% of the outstanding shares. Except as otherwise indicated, investment
policies of the Funds are not fundamental and may be changed by the Board of
Trustees of the Trust (the "Board") without shareholder approval. Likewise,
nonfundamental investment policies of a Core Portfolio may be changed by that
investment company's board of trustees ("Core Board") without shareholder
approval.
 
Unless otherwise indicated, the discussion below of the investment policies of
the Funds refers, in the case of Stable Income Fund and Total Return Bond Fund,
to the investment policies of their respective Core Portfolios. For more
information concerning shareholder voting, (see "Other Information - The Trust
and Its Shares - Shareholder Voting and Other Rights" and "Other Information -
Core and Gateway Structure.") A further description of the Funds' investment
policies, including additional fundamental policies, is contained in the SAI.
 
No Fund may invest more than 15% of its net assets in illiquid securities,
including repurchase agreements not entitling the Fund to payment within seven
days. As used herein, the term U.S. Government Securities means obligations
issued or guaranteed as to principal and interest by the U.S. Government, its
agencies or instrumentalities.
 
As part of its regular banking operations, Norwest Bank may make loans to public
companies. Thus, it may be possible, from time to time, for a Fund to hold or
acquire the securities of issuers which are also lending clients of Norwest
Bank. A lending relationship will not be a factor in the selection of portfolio
securities for a Fund.
 
BORROWING. As a fundamental policy, each of Income Fund and Total Return Bond
Fund may borrow money from banks or by entering into reverse repurchase
agreements and will limit borrowings to amounts not in excess of 33 1/3% of the
value of the Fund's total assets. As a fundamental policy, Stable Income Fund
and Intermediate Government Income Fund may borrow money for temporary or
emergency purposes, including the meeting of redemption requests, but not in
excess of 33 1/3% of the Fund's total assets. Borrowing for other than temporary
or emergency purposes or meeting redemption requests may not exceed 5% of the
value of any Fund's assets, except in the case of Intermediate Government Income
Fund. Each Fund may enter into reverse repurchase agreements (transactions in
which a Fund sells a security and simultaneously commits to repurchase that
security from the buyer at an agreed upon price on an agreed upon future date).
 
DIVERSIFICATION AND CONCENTRATION. Each Fund is diversified as that term is
defined in the Investment Company Act of 1940 (the "1940 Act"). As a
 
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fundamental policy, with respect to 75% of its assets, no Fund may purchase a
security (other than a U.S. Government Security or shares of investment
companies) if, as a result: (1) more than 5% of the Fund's total assets would be
invested in the securities of a single issuer; or (2) the Fund would own more
than 10% of the outstanding voting securities of any single issuer. Each Fund is
prohibited from concentrating its assets in the securities of issuers in any
industry. As a fundamental policy, each Fund may not purchase securities if,
immediately after the purchase, more than 25% of the value of the Fund's total
assets would be invested in the securities of issuers conducting their principal
business activities in the same industry. This limit does not apply to
investments in U.S. Government Securities, foreign government securities or
repurchase agreements covering U.S. Government Securities.
 
Each Fund reserves the right upon notification to shareholders to invest up to
100% of its investable assets in one or more other investment companies such as
the Core Portfolios.
 
FIXED INCOME SECURITIES AND THEIR CHARACTERISTICS. Although each Fund only
invests in investment grade fixed income securities, including money market
instruments, an investment in a Fund is subject to risk even if all fixed income
securities in the Fund's portfolio are paid in full at maturity. All fixed
income securities, including U.S. Government Securities, can change in value
when there is a change in interest rates or the issuer's actual or perceived
creditworthiness or ability to meet its obligations.
 
The market value of the interest-bearing debt securities held by the Funds will
be affected by changes in interest rates. There is normally an inverse
relationship between the market value of securities sensitive to prevailing
interest rates and actual changes in interest rates. In other words, an increase
in interest rates produces a decrease in market value. Moreover, the longer the
remaining maturity (and duration) of a security, the greater will be the effect
of interest rate changes on the market value of that security. Changes in the
ability of an issuer to make payments of interest and principal and in the
market's perception of an issuer's creditworthiness will also affect the market
value of the debt securities of that issuer. The possibility exists that, the
ability of any issuer to pay, when due, the principal of and interest on its
debt securities may become impaired.
 
RATING MATTERS. The Funds' investments are subject to "credit risk" relating to
the financial condition of the issuers of the securities that each Fund holds.
To limit credit risk, each Fund will generally buy securities that are rated in
the top four long-term rating categories by an NRSRO or in the top two
short-term rating categories by an NRSRO, although certain Funds have greater
restrictions. Accordingly, the lowest permissible long-term investment grades
for corporate bonds, including convertible bonds, are "Baa" in the case of
Moody's Investors Service ("Moody's") and "BBB" in the case of
 
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Standard & Poor's ("S&P") and Fitch Investors Service, L.P. ("Fitch"); the
lowest permissible long-term investment grades for preferred stock are Baa in
the case of Moody's and "BBB" in the case of S&P and Fitch; and the lowest
permissible short-term investment grades for short-term debt, including
commercial paper, are Prime-2 (P-2) in the case of Moody's, A-2 in the case of
S&P and F-2 in the case of Fitch.
 
The Funds also may purchase unrated securities if Norwest determines the
security to be of comparable quality to a rated security that the Fund may
purchase. Unrated securities may not be as actively traded as rated securities.
Each Fund may retain a security whose rating has been lowered below the Fund's
lowest permissible rating category (or that are unrated and determined by
Norwest to be of comparable quality to securities whose rating has been lowered
below the Fund's lowest permissible rating category) if Norwest determines that
retaining the security is in the best interests of the Fund. Because a downgrade
often results in a reduction in the market price of the security, sale of a
downgraded security may result in a loss.
 
VARIABLE AND FLOATING RATE SECURITIES. The securities in which the Funds invest
(including mortgage-backed securities) may have variable or floating rates of
interest. These securities pay interest at rates that are adjusted periodically
according to a specified formula, usually with reference to some interest rate
index or market interest rate (the "underlying index"). The interest paid on
these securities is a function primarily of the underlying index upon which the
interest rate adjustments are based. Such adjustments minimize changes in the
market value of the obligation and, accordingly, enhance the ability of the Fund
to maintain a stable net asset value. Similar to fixed rate debt instruments,
variable and floating rate instruments are subject to changes in value based on
changes in market interest rates or changes in the issuer's creditworthiness.
The rate of interest on securities purchased by a Fund may be tied to various
rates of interest or indices. Certain variable rate securities (including
mortgage-related securities) pay interest at a rate that varies inversely to
prevailing short-term interest rates (sometimes referred to as inverse
floaters). For instance, upon reset the interest rate payable on a security may
go down when the underlying index has risen. During times when short-term
interest rates are relatively low as compared to long-term interest rates a Fund
may attempt to enhance its yield by purchasing inverse floaters. Certain inverse
floaters may have an interest rate reset mechanism that multiplies the effects
of changes in the underlying index. This form of leverage may have the effect of
increasing the volatility of the security's market value while increasing the
security's, and thus the Fund's, yield. Total Return Bond Fund limits its
investment in variable and floating rate securities to 5% of its assets.
 
There may not be an active secondary market for certain floating or variable
rate instruments (particularly inverse floaters and similar instruments) which
 
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could make it difficult for a Fund to dispose of the instrument during periods
that the Fund is not entitled to exercise any demand rights it may have. A Fund
could, for this or other reasons, suffer a loss with respect to an instrument.
Norwest monitors the liquidity of each Funds' investment in variable and
floating rate instruments, but there can be no guarantee that an active
secondary market will exist.
 
U.S. GOVERNMENT SECURITIES. As used in this Prospectus, the term U.S. Government
Securities means obligations issued or guaranteed as to principal and interest
by the United States Government, its agencies or instrumentalities. The U.S.
Government Securities in which a Fund may invest include U.S. Treasury
securities and obligations issued or guaranteed by U.S. Government agencies and
instrumentalities and backed by the full faith and credit of the U.S.
Government, such as those guaranteed by the Small Business Administration or
issued by the Government National Mortgage Association ("Ginnie Mae"). In
addition, the U.S. Government Securities in which the Funds may invest include
securities supported primarily or solely by the creditworthiness of the issuer,
such as securities of the Federal National Mortgage Association ("Fannie Mae"),
the Federal Home Loan Mortgage Corporation ("Freddie Mac") and the Tennessee
Valley Authority. There is no guarantee that the U.S. Government will support
securities not backed by its full faith and credit. Accordingly, although these
securities have historically involved little risk of loss of principal if held
to maturity, they may involve more risk than securities backed by the U.S.
Government's full faith and credit.
 
ZERO-COUPON SECURITIES. A Fund may invest in separately traded principal and
interest components of securities issued or guaranteed by the U.S. Treasury.
These components are traded independently under the Treasury's Separate Trading
of Registered Interest and Principal of Securities ("STRIPS") program or as
Coupons Under Book Entry Safekeeping ("CUBES"). The Funds may invest in other
types of related zero-coupon securities. For instance, a number of banks and
brokerage firms separate the principal and interest portions of U.S. Treasury
securities and sell them separately in the form of receipts or certificates
representing undivided interests in these instruments. These instruments are
generally held by a bank in a custodial or trust account on behalf of the owners
of the securities and are known by various names, including Treasury Receipts
("TRs"), Treasury Investment Growth Receipts ("TIGRs") and Certificates of
Accrual on Treasury Securities ("CATS"). Zero-coupon securities also may be
issued by corporations and municipalities.
 
Zero-coupon securities are sold at original issue discount and pay no interest
to holders prior to maturity, but a Fund holding a zero-coupon security must
include a portion of the original issue discount of the security as income.
Because of this, zero-coupon securities may be subject to greater fluctuation
 
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of market value than the other securities in which the Funds may invest. The
Funds distribute all of their net investment income, and may have to sell
portfolio securities to distribute imputed income, which may occur at a time
when Norwest would not have chosen to sell such securities and which may result
in a taxable gain or loss.
 
DEMAND NOTES. The Funds may purchase variable and floating rate demand notes of
corporations, which are unsecured obligations redeemable upon not more than 30
days' notice. These obligations include master demand notes that permit
investment of fluctuating amounts at varying rates of interest pursuant to
direct arrangement with the issuer of the instrument. The issuers of these
obligations often have the right, after a given period, to prepay their
outstanding principal amount of the obligations upon a specified number of days'
notice. These obligations generally are not traded, nor generally is there an
established secondary market for these obligations. To the extent a demand note
does not have a seven day or shorter demand feature and there is no readily
available market for the obligation, it is treated as an illiquid security.
Although a Fund would generally not be able to resell a master demand note to a
third party, the Fund is entitled to demand payment from the issuer at any time.
Norwest continuously monitors the financial condition of the issuer to determine
the issuer's likely ability to make payment on demand.
 
CONVERTIBLE SECURITIES AND PREFERRED STOCK. Convertible securities, which
include convertible debt, convertible preferred stock and other securities
exchangeable under certain circumstances for shares of common stock, are fixed
income securities or preferred stock which generally may be converted at a
stated price within a specific amount of time into a specified number of shares
of common stock. A convertible security entitles the holder to receive interest
paid or accrued on debt or the dividend paid on preferred stock until the
convertible security matures or is redeemed, converted or exchanged. Before
conversion, convertible securities have characteristics similar to
nonconvertible debt securities in that they normally provide a stream of income
with generally higher yields than those of common stocks of the same or similar
issuers. These securities are usually senior to common stock in a company's
capital structure, but usually are subordinated to non-convertible debt
securities. In general, the value of a convertible security is the higher of its
investment value (its value as a fixed income security) and its conversion value
(the value of the underlying shares of common stock if the security is
converted). As a fixed income security, the value of a convertible security
generally increases when interest rates decline and generally decreases when
interest rates rise. The value of a convertible security is, however, also
influenced by the value of the underlying common stock.
 
Preferred stock is a class of stock having priority over common stock as to
dividends or the recovery of investment or both. The owner of preferred
 
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stock is a shareholder in a business and not, like a bondholder, a creditor.
Dividends paid to preferred stockholders are distributions of earnings of a
business in contrast to interest payments to bondholders which are expenses of a
business.
 
REPURCHASE AGREEMENTS AND LENDING OF PORTFOLIO SECURITIES. Each Fund may seek
additional income by entering into repurchase agreements or by lending
securities from its portfolio to brokers, dealers and other financial
institutions. These investments may entail certain risks not associated with
direct investments in securities. For instance, in the event that bankruptcy or
similar proceedings were commenced against a counterparty in these transactions
or a counterparty defaulted on its obligations, a Fund might suffer a loss.
 
Repurchase agreements are transactions in which a Fund purchases a security and
simultaneously commits to resell that security to the seller at an agreed-upon
price on an agreed-upon future date, normally one to seven days later. The
resale price reflects a market rate of interest that is not related to the
coupon rate or maturity of the purchased security. When a Fund lends a security
it receives interest from the borrower or from investing cash collateral. The
Trust maintains possession of the purchased securities and any underlying
collateral in these transactions, the total market value of which on a
continuous basis is at least equal to the repurchase price or value of
securities loaned, plus accrued interest. The Funds may pay fees to arrange
securities loans and each Fund will, as a fundamental policy, limit securities
lending to not more than 33 1/3% of the value of its total assets.
WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS. Each Fund may purchase
securities offered on a "when-issued" basis and may purchase securities on a
"forward commitment" basis. When such transactions are negotiated, the price is
fixed at the time the commitment is made, but delivery and payment for the
securities take place at a later date. Normally, the settlement date occurs
within three months after the transaction, but delayed settlements beyond three
months may be negotiated.
 
During the period between a commitment and settlement, no payment is made for
the securities purchased and, thus, no interest accrues to the Fund. At the time
a Fund makes a commitment to purchase securities in this manner, however, the
Fund immediately assumes the risk of ownership, including price fluctuation.
Failure by the other party to deliver or pay for a security purchased or sold by
the Fund may result in a loss or a missed opportunity to make an alternative
investment. Any significant commitment of a Fund's assets committed to the
purchase of securities on a when-issued or forward commitment basis may increase
the volatility of its net asset value. Except for dollar roll transactions,
which are described below, each of Stable
 
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Income Fund and Intermediate Government Income Fund limits its investments in
when-issued and forward commitment securities to 15% of the value of the Fund's
total assets. Total Return Bond Fund limits its investments in when-issued and
forward commitment securities to 35% of the value of the Fund's total assets.
 
The use of when-issued transactions and forward commitments enables a Fund to
hedge against anticipated changes in interest rates and prices. If Norwest were
to forecast incorrectly the direction of interest rate movements, however, a
Fund might be required to complete when-issued or forward transactions at prices
inferior to the current market values. The Funds enter into when-issued and
forward commitments only with the intention of actually receiving the
securities, but a Fund may sell the securities before the settlement date if
deemed advisable. If a Fund chooses to dispose of the right to acquire a
when-issued security prior to its acquisition or to dispose of its right to
deliver or receive against a forward commitment, it can incur a gain or loss.
 
DOLLAR ROLL TRANSACTIONS. A Fund may enter into dollar roll transactions wherein
the Fund sells fixed income securities, typically mortgage-backed securities,
and makes a commitment to purchase similar, but not identical, securities at a
later date from the same party. Like a forward commitment, during the roll
period no payment is made for the securities purchased and no interest or
principal payments on the security accrue to the purchaser, but the Fund assumes
the risk of ownership. A Fund is compensated for entering into dollar roll
transactions by the difference between the current sales price and the forward
price for the future purchase, as well as by the interest earned on the cash
proceeds of the initial sale. Like other when-issued securities or firm
commitment agreements, dollar roll transactions involve the risk that the market
value of the securities sold by the Fund may decline below the price at which a
Fund is committed to purchase similar securities. In the event the buyer of
securities under a dollar roll transaction becomes insolvent, the Fund's use of
the proceeds of the transaction may be restricted pending a determination by the
other party, or its trustee or receiver, whether to enforce the Fund's
obligation to repurchase the securities. The Funds will engage in roll
transactions for the purpose of acquiring securities for its portfolio and not
for investment leverage. Each of Stable Income Fund and Intermediate Government
Income Fund will limit its obligations on dollar roll transactions to 35% of the
Fund's net assets.
 
SWAP AGREEMENTS. To manage their exposure to different types of investments,
Stable Income Fund and Intermediate Government Income Fund may enter into
interest rate and mortgage (or other asset) swap agreements and may purchase
interest rate caps, floors and collars. In a typical interest rate swap
agreement, one party agrees to make regular payments equal to a floating
interest rate on a specified amount (the "notional principal amount")
 
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in return for payments equal to a fixed interest rate on the same amount for a
specified period. Mortgage swap agreements are similar to interest rate swap
agreements, except that the notional principal amount is tied to a reference
pool of mortgages. In a cap or floor, one party agrees, usually in return for a
fee, to make payments under particular circumstances. For example, the purchaser
of an interest rate cap has the right to receive payments to the extent a
specified interest rate exceeds an agreed upon level; the purchaser of an
interest rate floor has the right to receive payments to the extent a specified
interest rate falls below an agreed upon level. A collar entitles the purchaser
to receive payments to the extent a specified interest rate falls outside an
agreed upon range.
 
Swap agreements may involve leverage and may be highly volatile; depending on
how they are used, they may have a considerable impact on the Fund's
performance. Swap agreements involve risks depending upon the counterparty's
creditworthiness and ability to perform as well as the Fund's ability to
terminate its swap agreements or reduce its exposure through offsetting
transactions.
 
SHORT SALES. Intermediate Government Income Fund may make short sales of
securities which it does not own or have the right to acquire in anticipation of
a decline in the market price for the security. When the Fund makes a short
sale, the proceeds it receives are retained by the broker until the Fund
replaces the borrowed security. In order to deliver the security to the buyer,
the Fund must arrange through a broker to borrow the security and, in so doing,
the Fund becomes obligated to replace the security borrowed at its market price
at the time of replacement, whatever that price may be.
 
Short sales create opportunities to increase the Fund's return but, at the same
time, involve special risk considerations and may be considered a speculative
technique. Since the Fund in effect profits from a decline in the price of the
securities sold short without the need to invest the full purchase price of the
securities on the date of the short sale, the Fund's net asset value per share,
will tend to increase more when the securities it has sold short decrease in
value, and to decrease more when the securities it has sold short increase in
value, than would otherwise be the case if it had not engaged in such short
sales. Short sales theoretically involve unlimited loss potential, as the market
price of securities sold short may continuously increase, although a Fund may
mitigate such losses by replacing the securities sold short before the market
price has increased significantly. Under adverse market conditions a Fund might
have difficulty purchasing securities to meet its short sale delivery
obligations and might have to sell portfolio securities to raise the capital
necessary to meet its short sale obligations at a time when fundamental
investment considerations would not favor those sales.
 
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PURCHASING SECURITIES ON MARGIN. Intermediate Government Income Fund may
purchase securities on margin. When the Fund purchases securities on margin, it
only pays part of the purchase price and borrows the remainder, typically from
the Fund's broker. As a borrowing, a Fund's purchase of securities on margin is
subject to the limitations and risks described in "Borrowing". In addition, if
the value of the securities purchased on margin decreases such that the Fund's
borrowing with respect to the security exceeds the maximum permissible borrowing
amount, the Fund will be required to make margin payments (additional payments
to the broker to maintain the level of borrowing at permissible levels). A
Fund's obligation to satisfy margin calls may require the Fund to sell
securities at an inappropriate time.
 
TECHNIQUES INVOLVING LEVERAGE. Utilization of leveraging involves special risks
and may involve speculative investment techniques. The Funds may borrow for
other than temporary or emergency purposes, lend their securities, enter reverse
repurchase agreements, and purchase securities on a when issued or forward
commitment basis. In addition, certain funds may engage in dollar roll
transactions and Intermediate Government Income Fund may purchase securities on
margin and sell securities short (other than against the box). Each of these
transactions involves the use of "leverage" when cash made available to the Fund
through the investment technique is used to make additional portfolio
investments. In addition, the use of swap and related agreements may involve
leverage. The Funds use these investment techniques only when the Adviser to a
Fund believes that the leveraging and the returns available to the Fund from
investing the cash will provide shareholders with a potentially higher return.
 
Leverage exists when a Fund achieves the right to a return on a capital base
that exceeds the Fund's investment. Leverage creates the risk of magnified
capital losses which occur when losses affect an asset base, enlarged by
borrowings or the creation of liabilities, that exceeds the equity base of the
Fund.
 
The risks of leverage include a higher volatility of the net asset value of the
Fund's shares and the relatively greater effect on the net asset value of the
shares caused by favorable or adverse market movements or changes in the cost of
cash obtained by leveraging and the yield obtained from investing the cash. So
long as a Fund is able to realize a net return on its investment portfolio that
is higher than interest expense incurred, if any, leverage will result in higher
current net investment income being realized by the Fund than if the Fund were
not leveraged. On the other hand, interest rates change from time to time as
does their relationship to each other depending upon such factors as supply and
demand, monetary and tax policies and investor expectations. Changes in such
factors could cause the relationship between the cost of leveraging and the
yield to change so that rates involved in the leveraging arrangement may
substantially increase relative to the yield on the
 
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obligations in which the proceeds of the leveraging have been invested. To the
extent that the interest expense involved in leveraging approaches the net
return on the Fund's investment portfolio, the benefit of leveraging will be
reduced, and, if the interest expense on borrowings were to exceed the net
return to shareholders, the Fund's use of leverage would result in a lower rate
of return than if the Fund were not leveraged. Similarly, the effect of leverage
in a declining market could be a greater decrease in net asset value per share
than if the Fund were not leveraged. In an extreme case, if the Fund's current
investment income were not sufficient to meet the interest expense of
leveraging, it could be necessary for the Fund to liquidate certain of its
investments at an inappropriate time. The use of leverage may be considered
speculative.
 
SEGREGATED ACCOUNT. In order to limit the risks involved in various transactions
involving leverage, the Trust's custodian will set aside and maintain in a
segregated account cash and other liquid securities in accordance with SEC
guidelines. basis, the Fund will maintain the full amount accrued on a daily
basis of the Fund's obligations with respect to the swap in their segregated
account.
 
MORTGAGE-BACKED SECURITIES. Mortgage-backed securities represent an interest in
a pool of mortgages originated by lenders such as commercial banks, savings
associations and mortgage bankers and brokers. Mortgage-backed securities may be
issued by governmental or government-related entities or by non-governmental
entities such as special purpose trusts created by banks, savings associations,
private mortgage insurance companies or mortgage bankers.
Interests in mortgage-backed securities differ from other forms of debt
securities, which normally provide for periodic payment of interest in fixed
amounts with principal payments at maturity or on specified call dates. In
contrast, mortgage-backed securities provide monthly payments which consist of
interest and, in most cases, principal. In effect, these payments are a
"pass-through" of the monthly payments made by the individual borrowers on their
mortgage loans, net of any fees paid to the issuer or guarantor of the
securities or a mortgage loan servicer. Additional payments to holders of these
securities are caused by prepayments resulting from the sale or foreclosure of
the underlying property or refinancing of the underlying loans.
 
    UNDERLYING MORTGAGES. Pools of mortgages consist of whole mortgage loans or
participations in mortgage loans. The majority of these loans are made to
purchasers of 1-4 family homes, but may be made to purchasers of mobile homes or
other real estate interests. The terms and characteristics of the mortgage
instruments are generally uniform within a pool but may vary among pools. For
example, in addition to fixed-rate, fixed-term mortgages, the Fund may purchase
pools of variable rate mortgages, growing equity
 
                                                                  33
<PAGE>
- ----
- ----
mortgages, graduated payment mortgages and other types. Mortgage servicers
impose qualification standards for local lending institutions which originate
mortgages for the pools as well as credit standards and underwriting criteria
for individual mortgages included in the pools. In addition, many mortgages
included in pools are insured through private mortgage insurance companies.
 
    LIQUIDITY AND MARKETABILITY. Generally, government and government-related
pass-through pools are highly liquid. While private conventional pools of
mortgages (pooled by non-government-related entities) have also achieved broad
market acceptance and an active secondary market has emerged, the market for
conventional pools is smaller and less liquid than the market for government and
government-related mortgage pools.
 
    AVERAGE LIFE AND PREPAYMENTS. The average life of a pass-through pool varies
with the maturities of the underlying mortgage instruments. In addition, a
pool's terms may be shortened by unscheduled or early payments of principal and
interest on the underlying mortgages. Prepayments with respect to securities
during times of declining interest rates will tend to lower the return of the
Fund and may even result in losses to the Fund if the securities were acquired
at a premium. The occurrence of mortgage prepayments is affected by various
factors including the level of interest rates, general economic conditions, the
location and age of the mortgage and other social and demographic conditions. As
prepayment rates of individual pools vary widely, it is not possible to
accurately predict the average life of a particular pool. The assumed average
life of pools of mortgages having terms of 30 years or less is typically between
5 and 12 years.
 
    YIELD CALCULATIONS. Yields on pass-through securities are typically quoted
based on the maturity of the underlying instruments and the associated average
life assumption. In periods of falling interest rates the rate of prepayment
tends to increase, thereby shortening the actual average life of a pool of
mortgages. Conversely, in periods of rising rates the rate of prepayment tends
to decrease, thereby lengthening the actual average life of the pool. Actual
prepayment experience may cause the yield to differ from the assumed average
life yield. Reinvestment of prepayments may occur at higher or lower interest
rates than the original investment, thus affecting the yield of the Fund.
 
    GOVERNMENT AND GOVERNMENT-RELATED GUARANTORS. The principal government
guarantor of mortgage-backed securities is Ginnie Mae, a wholly-owned United
States Government corporation within the Department of Housing and Urban
Development. Mortgage-backed securities are also issued by Fannie Mae, a
government-sponsored corporation owned entirely by private stockholders that is
subject to general regulation by the Secretary
 
                                       34
<PAGE>
- ----
- ----
of Housing and Urban Development, and Freddie Mac, a corporate instrumentality
of the United States Government. While Fannie Mae and Freddie Mac each guarantee
the payment of principal and interest on the securities they issue, unlike
Ginnie Mae securities, their securities are not backed by the full faith and
credit of the United States Government.
 
    PRIVATELY ISSUED MORTGAGE-BACKED SECURITIES. Mortgage-backed securities
offered by private issuers include pass-through securities comprised of pools of
conventional mortgage loans; mortgage-backed bonds (which are considered to be
debt obligations of the institution issuing the bonds and which are
collateralized by mortgage loans); and collateralized mortgage obligations
("CMOs"), which are described below. Mortgage-backed securities issued by
non-governmental issuers may offer a higher rate of interest than securities
issued by government issuers because of the absence of direct or indirect
government guarantees of payment. Many non-governmental issuers or servicers of
mortgage-backed securities, however, guarantee timely payment of interest and
principal on these securities. Timely payment of interest and principal also may
be supported by various forms of insurance, including individual loan, title,
pool and hazard policies.
 
    ADJUSTABLE RATE MORTGAGE-BACKED SECURITIES. Adjustable rate mortgage-backed
securities ("ARMs") are securities that have interest rates that are reset at
periodic intervals, usually by reference to some interest rate index or market
interest rate. Although the rate adjustment feature may act as a buffer to
reduce sharp changes in the value of adjustable rate securities, these
securities are still subject to changes in value based on changes in market
interest rates or changes in the issuer's creditworthiness. Because of the
resetting of interest rates, adjustable rate securities are less likely than
non-adjustable rate securities of comparable quality and maturity to increase
significantly in value when market interest rates fall. Also, most adjustable
rate securities (or the underlying mortgages) are subject to caps or floors.
"Caps" limit the maximum amount by which the interest rate paid by the borrower
may change at each reset date or over the life of the loan and, accordingly,
fluctuation in interest rates above these levels could cause such mortgage
securities to "cap out" and to behave more like long-term, fixed-rate debt
securities. ARMs may have less risk of a decline in value during periods of
rapidly rising rates, but they also may have less potential for capital
appreciation than other debt securities of comparable maturities due to the
periodic adjustment of the interest rate on the underlying mortgages and due to
the likelihood of increased prepayments of mortgages as interest rates decline.
Furthermore, during periods of declining interest rates, income to the Fund will
decrease as the coupon rate resets along with the decline in interest rates.
During periods of rising interest rates, changes in the coupon
 
                                                                  35
<PAGE>
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- ----
rates of the mortgages underlying the Fund's ARMs may lag behind changes in
market interest rates. This may result in a lower value until the interest rate
resets to market rates.
 
    COLLATERALIZED MORTGAGE OBLIGATIONS. CMOs are debt obligations
collateralized by mortgages or mortgage pass-through securities issued by Ginnie
Mae, Freddie Mac or Fannie Mae or by pools of conventional mortgages ("Mortgage
Assets"). CMOs may be privately issued or U.S. Government Securities. Payments
of principal and interest on the Mortgage Assets are passed through to the
holders of the CMOs on the same schedule as they are received, although, certain
classes (often referred to as tranches) of CMOs have priority over other classes
with respect to the receipt of payments. Multi-class mortgage pass-through
securities are interests in trusts that hold Mortgage Assets and that have
multiple classes similar to those of CMOs. Unless the context indicates
otherwise, references to CMOs include multi-class mortgage pass-through
securities. Payments of principal of and interest on the underlying Mortgage
Assets (and in the case of CMOs, any reinvestment income thereon) provide funds
to pay debt service on the CMOs or to make scheduled distributions on the
multi-class mortgage pass-through securities. Parallel pay CMOs are structured
to provide payments of principal on each payment date to more than one class.
These simultaneous payments are taken into account in calculating the stated
maturity date or final distribution date of each class, which, as with other CMO
structures, must be retired by its stated maturity date or final distribution
date but may be retired earlier. Planned amortization class mortgage-based
securities ("PAC Bonds") are a form of parallel pay CMO. PAC Bonds are designed
to provide relatively predictable payments of principal provided that, among
other things, the actual prepayment experience on the underlying mortgage loans
falls within a contemplated range. If the actual prepayment experience on the
underlying mortgage loans is at a rate faster or slower than the contemplated
range, or if deviations from other assumptions occur, principal payments on a
PAC Bond may be greater or smaller than predicted. The magnitude of the
contemplated range varies from one PAC Bond to another; a narrower range
increases the risk that prepayments will be greater or smaller than
contemplated. CMOs may have complicated structures and generally involve more
risks than simpler forms of mortgage-related securities.
 
ASSET-BACKED SECURITIES. Asset-backed securities represent direct or indirect
participations in, or are secured by and payable from, assets other than
mortgage-related assets such as motor vehicle installment sales contracts,
installment loan contracts, leases of various types of real and personal
property and receivables from revolving credit (credit card) agreements. No Fund
may invest more than 15% (10% in the case of Income Fund and Total Return Bond
Fund) of its net assets in asset-backed securities that are backed by a
particular type of credit, for instance, credit card receivables. Asset-
 
                                       36
<PAGE>
- ----
- ----
backed securities, including adjustable rate asset-backed securities, have yield
characteristics similar to those of mortgage-related securities and,
accordingly, are subject to many of the same risks.
 
Assets are securitized through the use of trusts and special purpose
corporations that issue securities that are often backed by a pool of assets
representing the obligations of a number of different parties. Payments of
principal and interest may be guaranteed up to certain amounts and for a certain
time period by a letter of credit issued by a financial institution.
Asset-backed securities do not always have the benefit of a security interest in
collateral comparable to the security interests associated with mortgage-related
securities. As a result, the risk that recovery on repossessed collateral might
be unavailable or inadequate to support payments on asset-backed securities is
greater for asset-backed securities than for mortgage-related securities. In
addition, because asset-backed securities are relatively new, the market
experience in these securities is limited and the market's ability to sustain
liquidity through all phases of an interest rate or economic cycle has not been
tested.
 
FOREIGN SECURITIES. Stable Income Fund and Income Fund may invest in debt
securities registered and sold in the United States by foreign issuers (Yankee
Bonds) and debt securities sold outside the United States by foreign or U.S.
issuers (Euro-bonds). Each Fund intends to restrict its purchases of debt
securities to issues denominated and payable in United States dollars.
Investments in foreign companies involve certain risks, such as exchange rate
fluctuations, political or economic instability of the issuer or the country of
issue and the possible imposition of exchange controls, withholding taxes on
interest payments, confiscatory taxes or expropriation. Foreign securities also
may be subject to greater fluctuations in price than securities of domestic
corporations denominated in U.S. dollars. Foreign securities and their markets
may not be as liquid as domestic securities and their markets, and foreign
brokerage commissions and custody fees are generally higher than those in the
United States. In addition, less information may be publicly available about a
foreign company than about a domestic company, and foreign companies may not be
subject to uniform accounting, auditing and financial reporting standards
comparable to those applicable to domestic companies.
 
FUTURES CONTRACTS AND OPTIONS. Stable Income Fund and Intermediate Government
Income Fund may (and the other Funds may in the future) seek to enhance its
return through the writing (selling) and purchasing exchange-traded and
over-the-counter options on fixed income securities or indices. These Funds also
may attempt to hedge against a decline in the value of securities owned by it or
an increase in the price of securities which it plans to purchase through the
use of those options and the purchase and sale of interest rate futures
contracts and options on those futures contracts. These instruments are often
referred to as "derivatives," which may be defined as financial instruments
whose performance is derived at least in part, from the
 
                                                                  37
<PAGE>
- ----
- ----
performance of another asset (such as a security, currency or an index of
securities). The Funds only may write options that are covered. An option is
covered if, so long as the Fund is obligated under the option, it owns an
offsetting position in the underlying security or futures contract or maintains
cash or liquid securities in a segregated account with a value at all times
sufficient to cover the Fund's obligation under the option. A Fund may enter
into these futures contracts only if the aggregate of initial deposits for open
futures contract positions does not exceed 5% of the Fund's total assets.
 
RISK CONSIDERATIONS. A Fund's use of options and futures contracts subjects the
Fund to certain investment risks and transaction costs to which it might not
otherwise be subject. These risks include: (1) dependence on Norwest's ability
to predict movements in the prices of individual securities and fluctuations in
the general securities markets; (2) imperfect correlations between movements in
the prices of options or futures contracts and movements in the price of the
securities hedged or used for cover which may cause a given hedge not to achieve
its objective; (3) the fact that the skills and techniques needed to trade these
instruments are different from those needed to select the other securities in
which the Fund invests; (4) lack of assurance that a liquid secondary market
will exist for any particular instrument at any particular time, which, among
other things, may limit a Fund's ability to limit exposures by closing its
positions; (5) the possible need to defer closing out of certain options,
futures contracts and related options to avoid adverse tax consequences; and (6)
the potential for unlimited loss when investing in futures contracts or writing
options for which an offsetting position is not held.
 
Other risks include the inability of a Fund, as the writer of covered call
options, to benefit from any appreciation of the underlying securities above the
exercise price and the possible loss of the entire premium paid for options
purchased by the Fund. In addition, the futures exchanges may limit the amount
of fluctuation permitted in certain futures contract prices during a single
trading day. A Fund may be forced, therefore, to liquidate or close out a
futures contract position at a disadvantageous price.
 
There can be no assurance that a liquid market will exist at a time when a Fund
seeks to close out a futures position or that a counterparty in an over-
the-counter option transaction will be able to perform its obligations. There
are a limited number of options on interest rate futures contracts and exchange
traded options contracts on fixed income securities. Accordingly, hedging
transactions involving these instruments may entail "cross-hedging." As an
example, a Fund may wish to hedge existing holdings of mortgage-backed
securities, but no listed options may exist on those securities. In that event,
Norwest may attempt to hedge the Fund's securities by the use of options with
respect to similar fixed income securities. The Fund may use
 
                                       38
<PAGE>
- ----
- ----
various futures contracts that are relatively new instruments without a
significant trading history. As a result, there can be no assurance that an
active secondary market in those contracts will develop or continue to exist.
 
LIMITATIONS. The Funds have no current intention of investing in futures
contracts and options thereon for purposes other than hedging. No Fund may
purchase any call or put option on a futures contract if the premiums associated
with all such options held by the Fund would exceed 5% of the Fund's total
assets as of the date the option is purchased. No Fund may sell a put option if
the exercise value of all put options written by the Fund would exceed 50% of
the Fund's total assets or sell a call option if the exercise value of all call
options written by the Fund would exceed the value of the Fund's assets. In
addition, the current market value of all open futures positions held by a Fund
will not exceed 50% of its total assets.
 
OPTIONS ON SECURITIES. A call option is a contract pursuant to which the
purchaser of the call option, in return for a premium paid, has the right to buy
the security underlying the option at a specified exercise price at any time
during the term of the option. The writer of the call option, who receives the
premium, has the obligation upon exercise of the option to deliver the
underlying security against payment of the exercise price during the option
period. A put option gives its purchaser, in return for a premium, the right to
sell the underlying security at a specified price during the term of the option.
The writer of the put, who receives the premium, has the obligation to buy the
underlying security, upon exercise at the exercise price during the option
period. The amount of premium received or paid is based upon certain factors,
including the market price of the underlying security or index, the relationship
of the exercise price to the market price, the historical price volatility of
the underlying security or index, the option period, supply and demand and
interest rates.
 
INDEX FUTURES CONTRACTS. Bond and stock index futures contracts are bilateral
agreements pursuant to which two parties agree to take or make delivery of an
amount of cash equal to a specified dollar amount times the difference between
the bond or stock index value at the close of trading of the contract and the
price at which the futures contract is originally struck. No physical delivery
of the fixed income or equity securities comprising the index is made.
Generally, futures contracts are closed out prior to the expiration date of the
contract.
 
OPTIONS ON FUTURES CONTRACTS. Options on futures contracts are similar to stock
options except that an option on a futures contract gives the purchaser the
right, in return for the premium paid, to assume a position in a futures
contract rather than to purchase or sell stock, at a specified exercise price at
any time during the period of the option. Upon exercise of the option, the
 
                                                                  39
<PAGE>
- ----
- ----
delivery of the futures position to the holder of the option will be accompanied
by transfer to the holder of an accumulated balance representing the amount by
which the market price of the futures contract exceeds, in the case of a call,
or is less than, in the case of a put, the exercise price of the option on the
future.
 
TEMPORARY DEFENSIVE POSITION. When business or financial conditions warrant, the
Funds may assume a temporary defensive position and invest without limit in cash
or prime quality cash equivalents, including: (1) short-term U.S. Government
Securities; (2) certificates of deposit, bankers' acceptances and
interest-bearing savings deposits of commercial banks doing business in the
United States; (3) commercial paper; (4) repurchase agreements; and (5) shares
of "money market funds" registered under the Investment Company Act of 1940 (the
"1940 Act") within the limits specified therein. Prime quality instruments are
those that are rated in one of the two highest short-term rating categories by
an NRSRO or, if not rated, determined by Norwest to be of comparable quality.
During periods when and to the extent that a Fund has assumed a temporary
defensive position, it may not be pursuing its investment objective. Apart from
temporary defensive purposes, a Fund may at any time invest a portion of its
assets in cash and cash equivalents as described above.
 
PORTFOLIO TRANSACTIONS. The Advisers place orders for the purchase and sale of
assets they manage with brokers and dealers selected by and in the discretion of
the respective Adviser. The Advisers seek "best execution" for all portfolio
transactions, but a Fund or Core Portfolio may pay higher than the lowest
available commission rates when an Adviser believes it is reasonable to do so in
light of the value of the brokerage and research services provided by the broker
effecting the transaction.
 
Commission rates for brokerage transactions are fixed on many foreign securities
exchanges, and this may cause higher brokerage expenses to accrue to a Fund or
Core Portfolio that invests in foreign securities than would be the case for
comparable transactions effected on United States securities exchanges.
 
Subject to the policy of obtaining "best execution" each Adviser may employ
broker-dealer affiliates (collectively "Affiliated Brokers") to effect brokerage
transactions. Payment of commissions to Affiliated Brokers is subject to
procedures adopted by the Board and, with respect to a Core Portfolio, that
investment company's board of trustees, to provide that the commissions will not
exceed the usual and customary broker's commissions charged by unaffiliated
brokers. No specific portion of brokerage transactions will be directed to
Affiliated Brokers and in no event will a broker affiliated with the Adviser
directing the transaction receive brokerage transactions in recognition of
research services provided to the Adviser.
 
                                       40
<PAGE>
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The frequency of portfolio transactions of a Fund or Core Portfolio (the
portfolio turnover rate) will vary from year to year depending on many factors.
From time to time a Fund or Core Portfolio may engage in active short-term
trading to take advantage of price movements affecting individual issues, groups
of issues or markets. Portfolio turnover is reported under "Financial
Highlights." An annual portfolio turnover rate of 100% would occur if all of the
securities in a fund were replaced once in a period of one year. Higher
portfolio turnover rates may result in increased brokerage costs and a possible
increase in short-term capital gains or losses.
 
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<PAGE>
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4.MANAGEMENT
 
The business of the Trust is managed under the direction of the Board of
Trustees, and the business of each Core Portfolio is managed under the direction
of the Core Board. The Board formulates the general policies of the Funds and
meets periodically to review the results of the Funds, monitor investment
activities and practices and discuss other matters affecting the Funds and the
Trust. The Board consists of eight persons.
 
INVESTMENT ADVISORY SERVICES
 
NORWEST INVESTMENT MANAGEMENT. Subject to the general supervision of the Board,
Norwest makes investment decisions for the Funds and Core Portfolios and
continuously reviews, supervises and administers each Fund's and Core
Portfolio's investment program or oversees the investment decisions of the
investment subadvisers, as applicable. Norwest provides its investment advisory
services indirectly to Stable Income Fund and Total Return Bond Fund through its
investment advisory services to the Core Portfolios. Norwest, which is located
at Norwest Center, Sixth Street and Marquette, Minneapolis, Minnesota 55479, is
an indirect subsidiary of Norwest Corporation, a multi-bank holding company that
was incorporated under the laws of Delaware in 1929. As of June 30, 1997,
Norwest Corporation had assets of $83.6 billion, which made it the 11th largest
bank holding company in the United States. As of June 30, 1997, Norwest
Corporation and its affiliates managed assets with a value of approximately
$52.9 billion.
 
INVESTMENT SUBADVISERS. To assist Norwest in carrying out its obligations, the
Core Portfolios and Norwest have retained the services of various investment
subadvisers as follows:
 
<TABLE>
<CAPTION>
                                                      INVESTMENT SUBADVISER OF
FUND                           CORE PORTFOLIO(S)           CORE PORTFOLIO
- -----------------------------------------------------------------------------
<S>                        <C>                        <C>
Stable Income Fund         Stable Income Portfolio    Galliard
Total Return Bond Fund     Total Return Bond          UCM
                           Portfolio
</TABLE>
 
Galliard and UCM make investment decisions for the Core Portfolios to which they
act as investment subadviser and continuously review, supervise
and administer the Core Portfolio's investment programs with respect to that
portion, if any, of the Portfolios' assets that Norwest believes should be
managed by Galliard or UCM. Currently, Galliard and UCM manage all of the assets
of the Core Portfolios for which they subadvise. Norwest supervises the
performance of Galliard and UCM, including their adherence to the Portfolios'
investment objectives and policies.
 
                                       42
<PAGE>
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GALLIARD CAPITAL MANAGEMENT, INC. Galliard, which is located at 800 LaSalle
Avenue, Suite 2060, Minneapolis, Minnesota 55479, is an investment advisory
subsidiary of Norwest Bank. Galliard provides investment advisory services to
bank and thrift institutions, pension and profit sharing plans, trusts and
charitable organizations and corporate and other business entities. As of March
31, 1997 Galliard managed approximately $3.0 billion in assets.
 
UNITED CAPITAL MANAGEMENT. UCM, which is located at 1700 Lincoln Street, Suite
3301, Denver, Colorado 80274, is a division of Norwest Bank Colorado, N.A., a
subsidiary of Norwest Corporation. UCM provides specialized investment advisory
services to various institutional pension accounts. As of March 31, 1997 UCM
managed over $2.0 billion in assets.
 
PORTFOLIO MANAGERS. Many persons on the advisory staff of Norwest, Galliard and
UCM contribute to the investment services provided to the Funds and the Core
Portfolios. The following persons, however, are primarily responsible for
day-to-day management and, unless otherwise noted, have been since the inception
of the Fund or Portfolio. For periods prior to June 1, 1997, all persons
associated with Norwest served in their current positions with Norwest Bank.
Prior to that date Norwest Bank was each Fund's investment adviser. In addition
to their responsibilities as listed below, each of the portfolio managers may
perform portfolio management and other duties for Norwest Bank.
 
     STABLE INCOME FUND/STABLE INCOME PORTFOLIO - Karl P. Tourville. Mr.
     Tourville has been a principal of Galliard since 1995. He has been
     associated with Norwest and its affiliates since 1986, most recently as
     Vice President and Senior Portfolio Manager.
 
     INTERMEDIATE GOVERNMENT INCOME FUND AND INCOME FUND - Marjorie H. Grace,
     CFA. Ms. Grace has been a Vice President of Norwest since 1992. Ms. Grace
     was a portfolio manager of Norwest Bank from 1992-1993; an Institutional
     Salesperson with Norwest Investment Services, Inc. from 1991-1992; a
     portfolio manager with United Banks of Colorado from 1989-1991; and Vice
     President and portfolio manager with Colombia Savings and Loan from
     1987-1989.
 
     TOTAL RETURN BOND FUND/TOTAL RETURN BOND PORTFOLIO - David B. Kinney. Mr.
     Kinney is a Vice President of UCM. He has been associated with Norwest and
     its affiliates since 1981.
 
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<PAGE>
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ADVISORY FEES. For its services, Norwest receives investment advisory fees from
the Funds (or to the extent a Fund invests in a Core Portfolio, from that Core
Portfolio) at the following annual rates of the Fund's or Portfolio's average
daily net assets.
 
<TABLE>
<CAPTION>
 
                                              INVESTMENT ADVISORY
FUND                                                  FEE
- -----------------------------------------------------------------
<S>                                           <C>
Stable Income Fund (Stable Income
  Portfolio)................................           0.30%
Intermediate Government Income Fund.........           0.33%
Income Fund.................................           0.50%
Total Return Bond Fund (Total Return Bond
  Portfolio)................................           0.35%
</TABLE>
 
Norwest (and not the Core Portfolios) pays Galliard and UCM a fee for their
investment subadvisory services. This compensation does not increase the amount
paid by the Core Portfolio to Norwest for investment advisory services.
 
Stable Income Fund and Total Return Bond Fund may withdraw their investments
from their respective Core Portfolio at any time if the Board determines that it
is in the best interests of the Fund to do so. (See "Other Information - Core
and Gateway Structure.") Accordingly, Stable Income Fund and Total Return Bond
Fund have retained Norwest as their investment adviser. Similarly, Stable Income
Fund has retained Galliard as its investment subadviser; and Total Return Bond
Fund has retained UCM as its investment subadviser. Under these "dormant"
investment advisory arrangements, none of Norwest, Galliard or UCM receives any
advisory fees with respect to a Fund as long as the Fund remains completely
invested in its respective Core Portfolio or any other investment companies. In
the event that Stable Income Fund or Total Return Bond Fund were to withdraw
there assets from their respective Core Portfolios, Norwest would receive an
investment advisory fee at the same rate as it does for the Core Portfolio and
would pay Galliard and UCM, as applicable, a fee for their investment
sub-advisory services.
 
MANAGEMENT, ADMINISTRATION AND
DISTRIBUTION SERVICES
 
As manager, Forum supervises the overall management of the Trust (including the
Trust's receipt of services for which the Trust is obligated to pay) other than
investment advisory services. In this capacity Forum provides the Trust with
general office facilities, provides persons satisfactory to the Board to serve
as officers of the Trust and oversees the performance of administrative and
professional services rendered to the Funds by others. FAS is responsible for
performing certain administrative services necessary for the Trust's operations
with respect to each Fund including: (1) preparing and printing updates
 
                                       44
<PAGE>
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of the Trust's registration statement and prospectuses to its shareholders, the
SEC and state securities administrators; (2) preparing proxy and information
statements and any other communications to shareholders; (3) monitoring the
sales of shares and ensuring that such shares are properly and duly registered
with the SEC and applicable state securities administrators; and (4) supervising
the declaration of dividends and distributions to shareholders.
 
As of June 30, 1997, Forum and FAS provided management and administrative
services to registered investment companies and collective investment funds with
assets of approximately $25.5 billion. Forum is a member of the National
Association of Securities Dealers, Inc. For their services, Forum and FAS each
receives a fee with respect to Stable Income Fund and Total Return Bond Fund at
an annual rate of 0.025% of the Fund's average daily net assets and with respect
to Intermediate Government Income Fund and Income Fund at an annual rate of
0.05% of the Fund's average daily net assets.
 
FAS also serves as an administrator of each Core Portfolio and provides services
to the Core Portfolios that are similar to those provided to the Funds by Forum
and FAS. For its services FAS receives a fee with respect to each Core Portfolio
at an annual rate of 0.05% of the Portfolio's average daily net assets.
 
Pursuant to a separate agreement, Forum Accounting Services, LLC ("Forum
Accounting") provides portfolio accounting services to each Fund and to each
Core Portfolio. Forum, FAS, and Forum Accounting are members of the Forum
Financial Group of companies which together provide a full range of services to
the investment company and financial services industry. As of October 1, 1997,
Forum, FAS and Forum Accounting were controlled by John Y. Keffer, President and
Chairman of the Trust.
 
Forum also acts as the distributor of the Shares. As the Funds' distributor,
Forum pays a broker-dealers' reallowance on A Shares and a sales commission on B
Shares to broker-dealers who sell shares of the Funds. Normally, Forum will make
payments to broker-dealers (see, "Characteristics of The Shares.") From its own
resources, Forum may pay additional fees to broker-dealers or other persons for
distribution or other services related to the Funds. For further information
about the Funds' distribution plan, including the fees payable thereunder, see
"Characteristics of The Shares."
 
SHAREHOLDER SERVICING AND
CUSTODY
 
Norwest Bank serves as transfer agent and dividend disbursing agent for the
Trust (in this capacity, the "Transfer Agent"). The Transfer Agent maintains an
account for each shareholder of the Trust (unless such accounts are maintained
by sub-transfer agents or processing agents), performs other
 
                                                                  45
<PAGE>
- ----
- ----
transfer agency functions and acts as dividend disbursing agent for the Trust.
The Transfer Agent is permitted to subcontract any or all of its functions with
respect to all or any portion of the Trust's shareholders to one or more
qualified sub-transfer agents or processing agents, which may be affiliates of
the Transfer Agent. Sub-transfer agents and processing agents may be "Processing
Organizations" as described under "How to Buy Shares - Purchase Procedures." The
Transfer Agent is permitted to compensate those agents for their services;
however, that compensation may not increase the aggregate amount of payments by
the Trust to the Transfer Agent. For its services, the Transfer Agent receives a
fee with respect to each Fund at an annual rate of 0.25% of each Fund's average
daily net assets attributable to each class of the Fund.
 
Norwest Bank also serves as each Fund's and each Core Portfolio's custodian and
may appoint subcustodians for the foreign securities and other assets held in
foreign countries. For its custodial services, Norwest Bank receives a fee with
respect to each Fund and each Core Portfolio at an annual rate of 0.02% of the
first $100 million of the Fund's or Core Portfolio's average daily net assets,
0.015% of the next $100 million of the Fund's or Core Portfolio's average daily
net assets and 0.01% of the Fund's or Core Portfolio's remaining average daily
net assets. No fee is directly payable by the Fund to the extent the Fund is
invested in a Core Portfolio.
 
EXPENSES OF THE FUNDS
 
Subject to the obligation of Norwest to reimburse the Trust for certain expenses
of the Funds, the Trust has confirmed its obligation to pay all the Trust's
expenses. The Funds' expenses include Trust expenses attributable to the Funds,
which are allocated to each Fund, and expenses not specifically attributable to
the Funds, which are allocated among the Funds and all other funds of the Trust
in proportion to their average net assets. Each service provider to a Fund may
elect to waive (or continue to waive) all or a portion of their fees, which are
accrued daily and paid monthly. Any such waivers will have the effect of
increasing a Fund's performance for the period during which the waiver is in
effect. Except as otherwise noted fee waivers are voluntary and may be reduced
or eliminated at any time.
 
Norwest and Forum have agreed to waive their respective fees or reimburse
expenses in order to maintain Total Return Bond Fund's total combined operating
expenses through May 31, 1998 at the same levels as the Fund's total operating
expenses prior to May 31, 1997 (0.75% for A Shares and 1.50% for B Shares).
After May 31, 1988, any proposed reduction in the amount of those waivers and
reimbursements would be reviewed by the Board.
 
                                       46
<PAGE>
- ----
- ----
 
Each service provider to the Trust or their agents and affiliates also may act
in various capacities for, and receive compensation from, their customers who
are shareholders of a Fund. Under agreements with those customers, these
entities may elect to credit against the fees payable to them by their customers
or to rebate to customers all or a portion of any fee received from the Trust
with respect to assets of those customers invested in a Fund.
 
The expenses of Stable Income Fund and Total Return Bond Fund include the Fund's
pro rata share of the operating expenses of the Core Portfolios in which the
Fund invests, which are borne indirectly by the Fund's shareholders.
 
                                                                  47
<PAGE>
- ----
- ----
 
5.CHOOSING A SHARE CLASS
 
Investors should compare sales charges and fees before selecting a particular
class of shares. Investors should consider whether, during the anticipated life
of their investment in a Fund, the accumulated distribution services fee and
maintenance fee and contingent deferred sales charges on B Shares prior to
conversion would be less than the initial sales charge on A Shares purchased at
the same time and whether that differential would be offset by the higher yield
of A Shares. A summary of the charges applicable to shares of each Fund is
listed under "Prospectus Summary - Expense Information." Sales personnel of
broker-dealers and other financial institutions selling a Fund's shares may
receive differing compensation for selling A Shares and B Shares.
 
Because initial sales charges are deducted at the time of purchase, investors
purchasing a Fund's A Shares receive fewer shares than if the sales charge were
not deducted and, accordingly, do not have the entire purchase price invested.
Investors not qualifying for reduced initial sales charges who expect to
maintain their investment for an extended period of time should consider
whether, in light of the initial sales charge and its effect on the amount of
the purchase price invested, purchases of A Shares are more or less advantageous
than purchases of B Shares with their associated accumulated continuing
distribution and maintenance charges. For example, based on estimated current
fees and expenses, an investor in each Fund other than Stable Income Fund
subject to the 4.0% initial sales charge who elects to reinvest all dividends
and distributions would have to hold the shareholder's investment approximately
five years for the B Shares' distribution services fee and maintenance fee to
exceed the initial sales charge. An investor in Stable Income Fund subject to
the 1.50% initial sales charge who elects to reinvest all dividends and
distributions would have to hold the shareholder's investment approximately two
years for the B Shares' distribution services fee and maintenance fee to exceed
the initial sales charge. The foregoing examples does not take into account the
time value of money, fluctuations in net asset value or the effects of different
performance assumptions.
 
                                       48
<PAGE>
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- ----
 
A SHARES
 
The public offering price of A Shares is their next-determined net asset value
plus an initial sales charge assessed as follows (no sales charge is assessed on
the reinvestment of dividends or distributions):
 
STABLE INCOME FUND
 
<TABLE>
<CAPTION>
 
                                                              BROKER-
                                                              DEALERS'
                                   SALES CHARGE            REALLOWANCE AS
                                AS A PERCENTAGE OF          A PERCENTAGE
                         ................................   OF OFFERING
AMOUNT OF PURCHASE       OFFERING PRICE  NET ASSET VALUE*      PRICE
 
- -------------------------------------------------------------------------
<S>                      <C>             <C>               <C>
Less than $50,000......         1.50%            1.52%            1.35%
$50,000 to $99,999.....         1.00%            1.01%            0.90%
$100,000 to $499,000...         0.75%            0.76%            0.70%
$500,000 to $999,000...         0.50%            0.50%            0.45%
$1,000,000 and over....       None             None             None
 
* Rounded to the nearest one-hundredth percent
</TABLE>
 
INTERMEDIATE GOVERNMENT INCOME FUND,
INCOME FUND AND TOTAL RETURN BOND FUND
 
<TABLE>
<CAPTION>
 
                                                              BROKER-
                                                              DEALERS'
                                   SALES CHARGE            REALLOWANCE AS
                                AS A PERCENTAGE OF          A PERCENTAGE
                         ................................   OF OFFERING
AMOUNT OF PURCHASE       OFFERING PRICE  NET ASSET VALUE*      PRICE
 
- -------------------------------------------------------------------------
<S>                      <C>             <C>               <C>
Less than $50,000......         4.00%            4.17%            3.50%
$50,000 to $99,999.....         3.50%            3.63%            3.00%
$100,000 to $249,000...         3.00%            3.09%            2.50%
$250,000 to $499,999...         2.50%            2.56%            2.25%
$500,000 to $999,000...         2.00%            2.04%            1.75%
$1,000,000 to
 $2,499,999............         0.00%            0.00%            0.75%
$2,500,000 to
 $4,999,999............         0.00%            0.00%            0.50%
Over $5,000,000........         0.00%            0.00%            0.25%
 
* Rounded to the nearest one-hundredth percent
</TABLE>
 
Forum may pay a broker-dealers' reallowance to selected broker-dealers
purchasing shares as principal or agent, which may include banks, bank
affiliates and Processing Organizations. Normally, Forum will reallow discounts
to selected broker-dealers in the amounts indicated in the table above. In
addition, Forum may elect to reallow the entire sales charge to selected
 
                                                                  49
<PAGE>
- ----
- ----
broker-dealers for all sales with respect to which orders are placed with Forum.
The broker-dealers' reallowance may be changed from time to time. Forum may make
additional payments (out of its own resources) to selected broker-dealers of up
to 0.75% (0.50% in the case of Stable Income Fund) of the value of Fund shares
purchased at net asset value.
 
In addition, from time to time and at its own expense, Forum may provide
compensation, including financial assistance, to dealers in connection with
conferences, sales or training programs for their employees, seminars for the
public, advertising campaigns or other dealer-sponsored special events.
Compensation may include: (1) the provision of travel arrangements and lodging;
(2) tickets for entertainment events; and (3) merchandise.
 
In some instances, this compensation may be made available only to certain
dealers or other financial intermediaries who have sold or are expected to sell
significant amounts of shares of the Funds or who charge an asset based fee
(whether or not they have a fiduciary relationship with their clients).
 
No sales charge is assessed on purchases: (1) by any bank, trust company or
other institution acting on behalf of its fiduciary customer accounts or any
other account maintained by its trust department (including a pension, profit
sharing or other employee benefit trust created pursuant to a plan qualified
under Section 401 of the Internal Revenue Code of 1986, as amended); (2) by any
bank, trust company or other financial intermediary acting on behalf of its
asset based fee account customers; (3) by trustees and officers of the Trust;
directors, officers and full-time employees of Forum, of Norwest Corporation or
of any of their affiliates; the spouse, direct ancestor or direct descendant
(collectively, "relatives") of any such person; any trust or individual
retirement account or self-employed retirement plan for the benefit of any such
person or relative; or the estate of any such person or relative; (4) by any
registered investment adviser with whom Forum has entered into a Share purchase
agreement and which is acting on behalf of its fiduciary customer accounts; or
(5) of A Shares of a Fund made through the Directed Dividend Option from a fund
of the Trust that charges a front-end sales charge (see "Dividends and Tax
Matters"). Shares sold without a sales charge may not be resold except to the
Fund, and share purchases must be made for investment purposes.
 
REINSTATEMENT PRIVILEGE.  An investor who has redeemed A Shares of a Fund may,
within 60 days following the redemption, purchase without a sales charge A
Shares in an amount up to the amount of the redemption. Investors who desire to
exercise this "Reinstatement Privilege" should contact the Trust for further
information.
 
INVESTORS IN OTHER FUND FAMILIES.  No sales charge is assessed on purchases of A
Shares of a Fund with the proceeds of a redemption at net asset value, within
the preceding 60 days, of shares of a mutual fund that imposed on the
 
                                       50
<PAGE>
- ----
- ----
redeemed shares at the time of their purchase a sales charge equal to or greater
than that applicable to the A Shares of that Fund. Investors should contact the
Trust for further information and to obtain the necessary forms.
 
REDUCED INITIAL SALES CHARGES.  To qualify for a reduced sales charge, an
investor or the investor's Processing Organization must notify the Transfer
Agent at the time of purchase of the investor's intention to qualify and must
provide the Transfer Agent with sufficient information to verify that the
purchase qualifies for the reduced sales charge. Reduced sales charges may be
modified or terminated at any time and are subject to confirmation of an
investor's holdings. Further information about reduced sales charges is
contained in the SAI.
 
SELF-DIRECTED 401(K) PROGRAMS.  Purchases of A Shares of a Fund through
self-directed 401(k) programs and other qualified retirement plans offered by
Norwest, Forum or their affiliates in accumulated amounts of less than $100,000
are subject to a reduced sales charge applicable to a single purchase of
$100,000.
 
CUMULATIVE QUANTITY DISCOUNT (RIGHT OF ACCUMULATION).  An investor's purchase of
additional A Shares of a Fund may qualify for rights of accumulation ("ROA")
under which the applicable sales charge will be based on the total of the
investor's current purchase and the net asset value (at the end of the previous
Fund Business Day) of all A Shares of that Fund held by the investor. For
example, if an investor in Intermediate Government Income Fund, Income Fund or
Total Return Bond Fund owned A Shares of the Fund worth $500,000 at the then
current net asset value and purchased A Shares of that Fund worth an additional
$50,000, the sales charge for the $50,000 purchase would be at the 2.0% rate
applicable to a $550,000 purchase, rather than at the 3.5% rate applicable to a
$50,000 purchase.
 
In addition, an investor in a Fund that has previously purchased A Shares of any
other fund of the Trust that is sold with a sales charge equal to or greater
than the sales charge imposed on the A Shares of the Fund ("Eligible Fund") also
may qualify for ROA and may aggregate existing investments in A Shares of
Eligible Funds with current purchases of A Shares of the Fund to determine the
applicable sales charge. In addition, purchases of A Shares of a Fund by an
investor and the investor's spouse, direct ancestor or direct descendant may be
combined for purposes of ROA.
 
STATEMENT OF INTENTION.  Investors in A Shares also may obtain reduced sales
charges based on cumulative purchases by means of a written Statement of
Intention, expressing the investor's intention to invest $50,000 or more in A
Shares of a Fund within a period of 13 months. Each purchase of shares under a
Statement of Intention will be made at net asset value plus the sales charge
applicable at the time of the purchase to a single transaction of the dollar
amount indicated in the Statement.
 
                                                                  51
<PAGE>
- ----
- ----
 
Investors wishing to enter into a Statement of Intention in conjunction with
their initial investment in shares of a Fund should complete the appropriate
portion to the account application form. Current Fund shareholders can obtain a
Statement of Intention form by contacting the Transfer Agent.
 
CONTINGENT DEFERRED SALES CHARGE.  A Shares of a Fund on which no initial sales
charge was assessed due to the amount purchased in a single transaction or
pursuant to the Cumulative Quantity Discount or a Statement of Intention and
that are redeemed (including certain redemptions in connection with an exchange)
within specified periods after the purchase date of the shares will be subject
to contingent deferred sales charges equal to the percentages set forth below of
the dollar amount subject to the charge. The charge will be assessed on an
amount equal to the lesser of the cost of the shares being redeemed and their
net asset value at the time of redemption. Accordingly, no sales charge will be
imposed on increases in net asset value above the initial purchase price. In
addition, no charge will be assessed on shares derived from the reinvestment of
dividends and distributions.
 
STABLE INCOME FUND
 
<TABLE>
<CAPTION>
 
                                            CONTINGENT DEFERRED
                                          SALES CHARGE AS A % OF
                         PERIOD SHARES     DOLLAR AMOUNT SUBJECT
AMOUNT OF PURCHASE           HELD                TO CHARGE
- -----------------------------------------------------------------
<S>                    <C>                <C>
$1,000,000 to          Less than one
  $4,999,999.........  year                          0.50%
                       One to two years              0.25%
                       Less than one
Over $5,000,000......  year                          0.25%
</TABLE>
 
INTERMEDIATE GOVERNMENT INCOME FUND,
INCOME FUND AND TOTAL RETURN BOND FUND
 
<TABLE>
<CAPTION>
 
                                            CONTINGENT DEFERRED
                                          SALES CHARGE AS A % OF
                         PERIOD SHARES     DOLLAR AMOUNT SUBJECT
AMOUNT OF PURCHASE           HELD                TO CHARGE
- -----------------------------------------------------------------
<S>                    <C>                <C>
$1,000,000 to          Less than one
  $2,499,999.........  year                          0.75%
                       One to two years              0.50%
$2,500,000 to          Less than one
  $4,999,999.........  year                          0.50%
                       Less than one
Over $5,000,000......  year                          0.25%
</TABLE>
 
No contingent deferred sales charge is charged on redemptions to the same extent
as described under "B Shares - Contingent Deferred Sales Charge" below. The
contingent deferred sales charge on shares purchased through an exchange from
another fund of the Trust is based upon the original purchase date and price of
the other fund's shares. For A shareholders with a Statement of Intention that
do not purchase $1,000,000 of a Fund's A Shares pursuant
 
                                       52
<PAGE>
- ----
- ----
to their Statement, no contingent deferred sales charge is imposed. The
Statement of Intention provides for a contingent deferred sales charge in
certain other cases. Further information about the contingent deferred sales
charge is contained in the SAI.
 
B SHARES
 
DISTRIBUTION PLAN.  B Shares are sold at their net asset value per share without
the imposition of a sales charge at the time of purchase. With respect to B
Shares, each Fund has adopted a distribution plan pursuant to Rule 12b-1 under
the 1940 Act (the "Plan") providing for distribution payments, at an annual rate
of up to 0.75% of the average daily net assets of the Fund attributable to B
Shares (the "distribution services fee"), by each Fund to Forum, to compensate
Forum for its distribution activities. The distribution payments due to Forum
from each Fund comprise: (1) sales commissions at levels set from time to time
by the Board ("sales commissions"); and (2) an interest fee calculated by
applying the rate of 1% over the prime rate to the outstanding balance of
uncovered distribution charges (as described below). The current sales
commission rate is 3% (1.5% in the case of Stable Income Fund) and Forum
currently expects to pay sales commissions to each broker-dealer at the time of
sale of up to 3% (1.5% in the case of Stable Income Fund) of the purchase price
of B Shares of each Fund sold by the broker-dealer.
 
Under the distribution services agreement between Forum and the Trust, Forum
will receive, in addition to the distribution services fee, all contingent
deferred sales charges due upon redemptions of B Shares. The combined contingent
deferred sales charge and distribution services fee on B Shares are intended to
finance the distribution of those shares by permitting an investor to purchase
shares through broker-dealers without the assessment of an initial sales charge
and, at the same time, permitting Forum to compensate broker-dealers in
connection with the sales of the shares. Proceeds from the contingent deferred
sales charge with respect to a Fund are paid to Forum to defray the expenses
related to providing distribution-related services in connection with the sales
of B Shares, such as the payment of compensation to broker-dealers selling B
Shares. Forum may spend the distribution services fees it receives as it deems
appropriate on any activities primarily intended to result in the sale of B
Shares.
 
Under the Plan, a Fund will make distribution services fee payments to Forum
only for periods during which there are outstanding uncovered distribution
charges attributable to that Fund. Uncovered distribution charges are equivalent
to all sales commissions previously due (plus interest), less amounts received
pursuant to the Plan and all contingent deferred sales charges previously paid
to Forum. At May 31, 1997, Stable Income Fund, Intermediate Government Income
Fund, Income Fund and Total Return
 
                                                                  53
<PAGE>
- ----
- ----
Bond Fund had uncovered distribution expenses of $15,281; $153,833; $75,004; and
$45,379, respectively, or approximately 1.45%, 1.71%, 2.24% and 2.01%, of each
respective Fund's net assets attributable to B Shares as of the same date.
 
The amount of distribution services fees and contingent deferred sales charge
payments received by Forum with respect to a Fund is not related directly to the
amount of expenses incurred by Forum in connection with providing distribution
services to the B Shares and may be higher or lower than those expenses. Forum
may be considered to have realized a profit under the Plan if, at any time, the
aggregate amounts of all distribution services fees and contingent deferred
sales charge payments previously made to Forum exceed the total expenses
incurred by Forum in distributing B Shares.
 
Pursuant to the Plan, each Fund has agreed also to pay Forum a maintenance fee
in an amount equal to 0.25% of the average daily net assets of the Fund
attributable to the B Shares for providing personal services to shareholder
accounts. The maintenance fee may be paid by Forum to broker-dealers in an
amount not to exceed 0.25% of the value of B Shares held by the customers of the
broker-dealers. The distribution services fee and the maintenance fee are each
accrued daily and paid monthly and will cause a Fund's B Shares to have a higher
expense ratio and to pay lower dividends than A Shares of that Fund.
Notwithstanding the discontinuation of distribution services fees with respect
to a Fund, the Fund may continue to pay maintenance fees.
 
A Fund does not accrue future distribution services fees as a liability of the
Fund with respect to the B Shares or reduce the Fund's current net assets in
respect of distribution services fees which may become payable under the Plan in
the future.
 
In the event that the Plan is terminated or not continued with respect to a
Fund, the Fund may, under certain circumstances, continue to pay distribution
services fees to Forum (but only with respect to sales that occurred prior to
the termination or discontinuance of the Plan). Those circumstances are
described in detail in the SAI. In deciding whether to purchase B Shares of a
Fund, investors should consider that payments of distribution services fees
could continue until such time as there are no uncovered distribution charges
under the Plan attributable to that Fund. In approving the Plan, the Board
determined that there was a reasonable likelihood that the Plan would benefit
each Fund and its B shareholders.
 
Periods with a high level of sales of B Shares of a Fund accompanied by a low
level of redemptions of those shares that are subject to contingent deferred
sales charges will tend to increase uncovered distribution charges. Conversely,
periods with a low level of sales of B Shares of a Fund accompanied by a high
level of redemptions of those shares that are subject to contingent deferred
sales charges will tend to reduce uncovered distribution charges. A
 
                                       54
<PAGE>
- ----
- ----
high level of sales of B Shares during the first few years of operations,
coupled with the limitation on the amount of distribution services fees payable
by a Fund with respect to B Shares during any fiscal year, would cause a large
portion of the distribution services fees attributable to a sale of the B Shares
to be accrued and paid by the Fund to Forum with respect to those shares in
fiscal years subsequent to the years in which those shares were sold. The
payment delay would in turn result in the incurrence and payment of increased
interest fees under the Plan.
 
CONTINGENT DEFERRED SALES CHARGE.  B Shares of a Fund that are redeemed within
four years of purchase (two years of purchase in the case of the Stable Income
Fund) will be subject to contingent deferred sales charges equal to the
percentages set forth below of the dollar amount subject to the charge. The
amount of the contingent deferred sales charge, if any, will vary depending on
the number of years between the payment for the purchase of B Shares of a Fund
and their redemption.
 
The contingent deferred sales charge will be assessed on an amount equal to the
lesser of the cost of the B Shares being redeemed and their net asset value at
the time of redemption. Accordingly, no sales charge will be imposed on
increases in net asset value above the initial purchase price. In addition, no
charge will be assessed on B Shares derived from the reinvestment of dividends
and distributions.
 
<TABLE>
<CAPTION>
 
                            CONTINGENT DEFERRED SALES CHARGE AS A % OF
                                 DOLLAR AMOUNT SUBJECT TO CHARGE
                            ..........................................
                                                     INTERMEDIATE
                                                      GOVERNMENT
                                                 INCOME FUND, INCOME
                                                FUND AND TOTAL RETURN
YEAR SINCE PURCHASE         STABLE INCOME FUND        BOND FUND
 
- ----------------------------------------------------------------------
<S>                         <C>                 <C>
First.....................            1.5%                  3.0%
Second....................           0.75%                  2.0%
Third.....................         None                     2.0%
Fourth....................         None                    1.0        %
Fifth.....................         None                  None
Sixth.....................         None                  None
</TABLE>
 
Redemptions of Shares will be effected in the manner that results in the
imposition of the lowest deferred sales charge. Redemptions with respect to a
shareholder's investment in a Fund will automatically be made first from any A
Shares in the Fund, second from B Shares of the Fund acquired pursuant to
reinvestment of dividends and distributions, third from B Shares of the Fund
 
                                                                  55
<PAGE>
- ----
- ----
held for over four years (two years in the case of the Stable Income Fund), and
fourth from the longest outstanding B Shares of the Fund held for less than four
years (two years in the case of the Stable Income Fund).
 
No contingent deferred sales charge is imposed on: (1) redemptions of Shares
acquired through the reinvestment of dividends and distributions; (2)
involuntary redemptions by a Fund of shareholder accounts with low account
balances; (3) redemptions of Shares following the death or disability of a
shareholder if the Fund is notified within one year of the shareholder's death
or disability; (4) redemptions to effect a distribution (other than a lump sum
distribution) from an IRA, Keogh plan or Section 403(b) custodial account or
from a qualified retirement plan; and (5) redemptions by any registered
investment adviser with whom Forum has entered into a share purchase agreement
and which is acting on behalf of its fiduciary customer accounts. See the SAI
for further information.
 
CONVERSION FEATURE.  After six years (four years in the case of Stable Income
Fund) from the end of the calendar month in which the shareholder's purchase
order for B shares was accepted, the Shares will automatically convert to A
Shares of that Fund. The conversion will be on the basis of the relative net
asset values of the Shares, without the imposition of any sales load, fee or
other charge. For purposes of conversion, B Shares of a Fund purchased by a
shareholder through the reinvestment of dividends and distributions will be
considered to be held in a separate sub-account. Each time any B Shares in the
shareholder's account (other than those in the sub-account) convert, a
corresponding pro rata portion of those shares in the sub-account will also
convert. The conversion of B Shares to A Shares is subject to the continuing
availability of certain opinions of counsel and the conversion of a Fund's B
Shares to A Shares may be suspended if such an opinion is no longer available at
the time the conversion is to occur. In that event, no further conversions of
the Fund's B Shares would occur, and shares might continue to be subject to a
distribution services and maintenance fee for an indefinite period.
 
                                       56
<PAGE>
- ----
- ----
 
                                                           6.  HOW TO BUY SHARES
 
MINIMUM INVESTMENT
 
There is a $1,000 minimum for initial purchases ($5,000 in the case of Stable
Income Fund) and a $100 minimum for subsequent purchases of Shares of the Funds.
A Fund may in its discretion waive the investment minimums. Shareholders who
elect electronic share purchase privileges such as the Automatic Investment Plan
or the Directed Dividend Option are not subject to the initial investment
minimum. See "Other Shareholder Services - Automatic Investment Plan" and
"Dividends and Tax Matters."
 
The Funds reserve the right to reject any subscription for the purchase of their
shares. Share certificates are issued only to shareholders of record upon their
written request and no certificates are issued for fractional shares.
 
PURCHASE PROCEDURES
 
INITIAL PURCHASES
THERE ARE THREE WAYS TO PURCHASE SHARES INITIALLY.
 
1.  BY MAIL. Investors may send a check or money order (cash cannot be accepted)
along with a completed account application form to the Trust at the address
listed under "Account Application." Checks or money orders are accepted at full
value subject to collection. If a check or money order does not clear, the
purchase order will be canceled and the investor will be liable for any losses
or fees incurred by the Trust, the Transfer Agent or Forum.
 
For individual or Uniform Gift to Minors Act accounts, the check or money order
used to purchase shares of a Fund must be made payable to "Norwest Advantage
Funds" or to one or more owners of that account and endorsed to Norwest
Advantage Funds. No other method of payment by check will be accepted. For
corporation, partnership, trust, 401(k) plan or other non-individual type
accounts, the check used to purchase shares of a Fund must be made payable on
its face to "Norwest Advantage Funds." No other method of payment by check will
be accepted.
 
2.  BY BANK WIRE. Investors may make an initial investment in a Fund using the
wire system for transmittal of money among banks. The investor should first
telephone the Transfer Agent at (612) 667-8833 or (800) 338-1348 to obtain an
account number. The investor should then instruct a bank to wire the investor's
money immediately to:
     NORWEST BANK MINNESOTA, N.A.
     ABA 091 000 019
     FOR CREDIT TO: NORWEST ADVANTAGE FUNDS
          0844-131
          RE:  [NAME OF FUND]
               [DESIGNATE A SHARES OR B SHARES]
          ACCOUNT NO.:
          ACCOUNT NAME:
 
                                                                  57
<PAGE>
- ----
- ----
 
The investor should then promptly complete and mail the account application
form. There may be charges by the investor's bank for transmitting the money by
bank wire. The Trust does not charge investors for the receipt of wire
transfers. Payment by bank wire is treated as a federal funds payment when
received.
 
3.  THROUGH FINANCIAL INSTITUTIONS. Shares may be purchased and redeemed through
certain broker-dealers, banks and other financial institutions ("Processing
Organizations"). The Transfer Agent, Forum and their affiliates may be
Processing Organizations. Processing Organizations may receive as a
broker-dealer's reallowance a portion of the sales charge paid by their
customers who purchase A Shares of a Fund, may receive payments from Forum with
respect to sales of B Shares and may receive payments as a processing agent from
the Transfer Agent. In addition, financial institutions, including Processing
Organizations, may charge their customers a fee for their services and are
responsible for promptly transmitting purchase, redemption and other requests to
the Funds.
 
Investors who purchase shares through a Processing Organization will be subject
to the procedures of their Processing Organization, which may include charges,
limitations, investment minimums, cutoff times and restrictions in addition to,
or different from, those applicable to shareholders who invest in a Fund
directly. These investors should acquaint themselves with their institution's
procedures and should read this Prospectus in conjunction with any materials and
information provided by their institution. Customers who purchase a Fund's
shares through a Processing Organization may or may not be the shareholder of
record and, subject to their institution's and the Funds' procedures, may have
Fund shares transferred into their name. There is typically a three-day
settlement period for purchases and redemptions through broker-dealers. Certain
Processing Organizations also may enter purchase orders with payment to follow.
 
Certain shareholder services may not be available to shareholders who have
purchased shares through a Processing Organization. These shareholders should
contact their Processing Organization for further information. The Trust may
confirm purchases and redemptions of a Processing Organization's customers
directly to the Processing Organization, which in turn will provide its
customers with confirmations and periodic statements. The Trust is not
responsible for the failure of any Processing Organization to carry out its
obligations to its customer.
 
SUBSEQUENT PURCHASES
Subsequent purchases may be made by mailing a check, by sending a bank wire or
through a shareholder's Processing Organization as indicated above. All payments
should clearly indicate the shareholder's name and account number.
 
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ACCOUNT APPLICATION
 
Investors may obtain the account application form necessary to open an account
by writing the Trust at the following address:
 
     NORWEST ADVANTAGE FUNDS
     [NAME OF FUND]
     NORWEST BANK MINNESOTA, N.A.
     TRANSFER AGENT
     733 MARQUETTE AVENUE
     MINNEAPOLIS, MN 55479-0040
 
To participate in shareholder services not referenced on the account application
form and to change information on a shareholder's account (such as addresses),
investors or existing shareholders should contact the Trust. The Trust reserves
the right in the future to modify, limit or terminate any shareholder privilege
upon appropriate notice to shareholders and to charge a fee for certain
shareholder services, although no such fees are currently contemplated. Any
privilege and participation in any program may be terminated by the shareholder
at any time by writing to the Trust.
 
GENERAL INFORMATION
 
Fund shares are continuously sold on every weekday except customary national
business holidays (New Year's Day, Martin Luther King, Jr. Day,
Presidents' Day, Memorial Day, Independence Day, Labor Day, Thanksgiving
and Christmas) and Good Friday ("Fund Business Day"). The purchase price for
Fund shares equals their net asset value next-determined after acceptance of an
order plus, in the case of the A Shares, any applicable sales charge imposed at
the time of purchase.
 
Fund shares become entitled to receive dividends and distributions on the next
Fund Business Day after a purchase order is accepted.
 
All payments for Shares must be in U.S. dollars. Investments in the Funds may be
made either through certain financial institutions or by an investor directly.
An investor who invests in a Fund directly will be the shareholder of record.
All transactions in Fund shares are effected through the Transfer Agent, which
accepts orders for redemptions and for subsequent purchases only from
shareholders of record. Shareholders of record will receive from the Trust
periodic statements listing all account activity during the statement period.
 
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7.HOW TO SELL SHARES
 
GENERAL INFORMATION
 
Fund Shares may be sold (redeemed) at their net asset value on any Fund Business
Day subject to a contingent deferred sales charge imposed, in the case of A
Shares, on some redemptions made within two years of purchase and, in the case
of B Shares, on most redemptions made within four years of purchase (two in the
case of Stable Income Fund). There is no minimum period of investment and no
restriction on the frequency of redemptions.
 
Fund shares are redeemed as of the next determination of the Fund's net asset
value following receipt by the Transfer Agent of the redemption order in proper
form (and any supporting documentation that the Transfer Agent may require).
Redeemed shares are not entitled to receive dividends declared after the day the
redemption becomes effective.
 
Normally, redemption proceeds are paid immediately, but in no event later than
seven days, following receipt of a redemption order. Proceeds of redemption
requests (and exchanges), however, will not be paid unless any check used to
purchase the shares being redeemed has been cleared by the shareholder's bank,
which may take up to 15 days. This delay may be avoided by paying for shares
through wire transfers. Unless otherwise indicated, redemption proceeds normally
are paid by check mailed to the shareholder's record address. The right of
redemption may not be suspended nor the payment dates postponed for more than
seven days after the tender of the shares to a Fund, except when the New York
Stock Exchange is closed (or when trading thereon is restricted) for any reason
other than its customary weekend or holiday closings, for any period during
which an emergency exists as a result of which disposal by the Fund of its
portfolio securities or determination by the Fund of the value of its net assets
is not reasonably practicable and for such other periods as the SEC may permit.
 
REDEMPTION PROCEDURES
 
Shareholders who have invested through a Processing Organization may redeem
their shares through the Processing Organization as described above.
Shareholders who have invested directly in a Fund may redeem their Shares as
described below. Shareholders who wish to redeem shares by telephone or receive
redemption proceeds by bank wire must elect these options by properly completing
the appropriate sections of their account application form. These privileges may
not be available until several weeks after a shareholder's application is
received. Shares for which certificates have been issued may not be redeemed by
telephone.
 
1.  BY MAIL.  Shareholders may redeem shares by sending a written request to the
Transfer Agent accompanied by any share certificate that may have
 
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been issued to the shareholder to evidence the shares being redeemed. All
written requests for redemption must be signed by the shareholder with signature
guaranteed, and all certificates submitted for redemption must be endorsed by
the shareholder with signature guaranteed. (See "How to Sell Shares - Other
Redemption Matters.")
 
2.  BY TELEPHONE.  A shareholder who has elected telephone redemption privileges
may make a telephone redemption request by calling the Transfer Agent at (800)
338-1348 or (612) 667-8833 and providing the shareholder's account number, the
exact name in which his shares are registered and the shareholder's social
security or taxpayer identification number. In response to the telephone
redemption instruction, the Trust will mail a check to the shareholder's record
address or, if the shareholder has elected wire redemption privileges, wire the
proceeds. (See "How to Sell Shares - Other Redemption Matters.")
 
3.  BY BANK WIRE.  For redemptions of more than $5,000, a shareholder who has
elected wire redemption privileges may request a Fund to transmit the redemption
proceeds by federal funds wire to a bank account designated in writing by the
shareholder. To request bank wire redemptions by telephone, the shareholder also
must have elected the telephone redemption privilege. Redemption proceeds are
transmitted by wire on the day after a redemption request in proper form is
received by the Transfer Agent.
 
OTHER REDEMPTION MATTERS
 
To protect shareholders and the Funds against fraud, signatures on certain
requests must have a signature guarantee. Requests must be made in writing and
include a signature guarantee for any of the following transactions: (1) any
endorsement on a share certificate; (2) instruction to change a shareholder's
record name; (3) modification of a designated bank account for wire redemptions;
(4) instruction regarding an Automatic Investment Plan or Automatic Withdrawal
Plan; (5) dividend and distribution election; (6) telephone redemption; (7)
exchange option election or any other option election in connection with the
shareholder's account; (8) written instruction to redeem Shares whose value
exceeds $50,000; (9) redemption in an account in which the account address has
changed within the last 30 days; (10) redemption when the proceeds are deposited
in a Norwest Advantage Funds account under a different account registration; and
(xi) the remitting of redemption proceeds to any address, person or account for
which there are not established standing instructions on the account.
 
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Signature guarantees may be provided by any bank, broker-dealer, national
securities exchange, credit union, savings association or other eligible
institution that is authorized to guarantee signatures and is acceptable to the
Transfer Agent. Whenever a signature guarantee is required, the signature of
each person required to sign for the account must be guaranteed.
 
Shareholders who want to telephone redemption or exchange privileges must elect
those privileges. The Trust and Transfer Agent will employ reasonable procedures
in order to verify that telephone requests are genuine, including recording
telephone instructions and causing written confirmations of the resulting
transactions to be sent to shareholders. If the Trust and Transfer Agent did not
employ such procedures, they could be liable for losses due to unauthorized or
fraudulent telephone instructions. Shareholders should verify the accuracy of
telephone instructions immediately upon receipt of confirmation statements.
During times of drastic economic or market changes, telephone redemption and
exchange privileges may be difficult to implement. In the event that a
shareholder is unable to reach the Transfer Agent by telephone, requests may be
mailed or hand-delivered to the Transfer Agent.
 
Due to the cost to the Trust of maintaining smaller accounts, the Trust reserves
the right to redeem, upon not less than 60 days' written notice, all shares in
any Fund account whose aggregate net asset value is less than $1,000 ($5,000 in
the case of Stable Income Fund) immediately following any redemption.
 
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                                                  8.  OTHER SHAREHOLDER SERVICES
 
EXCHANGES
 
Shareholders of A Shares and B Shares may exchange their shares for A Shares and
B Shares, respectively, of the other funds of the Trust that offer those shares.
As of the date of this Prospectus, the funds of the Trust that offer A Shares
and B Shares, which are offered through separate prospectuses, are Tax-Free
Income Fund, Colorado Tax-Free Fund, Minnesota Tax-Free Fund, Income Equity
Fund, ValuGrowth-SM- Stock Fund, Diversified Equity Fund, Growth Equity Fund,
Small Company Stock Fund, Small Cap Opportunities Fund and International Fund.
It is anticipated that the Trust may in the future create additional funds that
will offer shares that will be exchangeable with the Funds' Shares. In addition,
A Shares may be exchanged for Investor Shares of Ready Cash Investment Fund and
Municipal Money Market Fund of the Trust. B Shares may be exchanged for Exchange
Shares of Ready Cash Investment Fund. Prospectuses for the shares of the funds
listed above, as well as a current list of the funds of the Trust that offer
shares exchangeable with the Shares of the Funds, can be obtained through Forum
by contacting the Transfer Agent.
 
The Funds do not charge for exchanges, and there is currently no limit on the
number of exchanges a shareholder may make. The Funds reserve the right,
however, to limit excessive exchanges by any shareholder. Exchanges are subject
to the fees (other than contingent deferred sales charges) charged by, and the
limitations (including minimum investment restrictions) of, the fund into which
a shareholder is exchanging.
 
Exchanges may only be made between identically registered accounts or by opening
a new account. A new account application is required to open a new account
through an exchange if the new account will not have an identical registration
and the same shareholder privileges as the account from which the exchange is
being made. Shareholders may only exchange into a fund if that fund's shares may
legally be sold in the shareholder's state of residence.
 
Under federal tax law, the Funds treat an exchange as a redemption and a
purchase. Accordingly, a shareholder may realize a capital gain or loss
depending on whether the value of the shares redeemed is more or less than the
shareholder's basis in the shares at the time of the exchange transaction.
Exchange procedures may be amended materially or terminated by the Trust at any
time upon 60 days' notice to shareholders. (See "Additional Purchase and
Redemption Information" in the SAI.)
 
SALES CHARGES.  The exchange of A Shares may result in additional sales charges.
If an exchange of A Shares is made into a fund that imposes an initial sales
charge, the shareholder is required to pay an amount equal to any excess of that
fund's initial sales charge attributable to the number of shares being
 
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acquired in the exchange over any initial sales charge paid by the shareholder
for the shares being exchanged. For example, if a shareholder paid a 2% initial
sales charge in connection with a purchase of shares and then exchanged those
shares into A Shares of another fund with a 3% initial sales charge, the
shareholder would pay an additional 1% sales charge on the exchange. A Shares
acquired through the reinvestment of dividends or distributions are deemed to
have been acquired with a sales charge rate equal to that applicable to the
shares on which the dividends or distributions were paid.
 
Shares of a Fund ("Original Shares") may be exchanged without the payment of any
contingent deferred sales charge. A and B Shares acquired as a result of such
exchange ("New Shares") and subsequently redeemed will nonetheless be subject to
the contingent deferred sales charge applicable to the Original Shares as if
those shares were being redeemed at that time. For purposes of computing both
the contingent deferred sales charge payable upon redemption of the New Shares
and, in the case of B Shares, the time remaining before the New B Shares convert
to A Shares of that Fund, the deferred sales charge and the time remaining
applicable to the Original Shares will apply to the New Shares rather than the
deferred sales charge and time remaining that would otherwise apply. The
deferred sales charge and time remaining applicable to Shares first purchased by
a shareholder will apply to New Shares resulting from both an initial and any
subsequent exchanges.
 
1.  EXCHANGES BY MAIL.  Exchanges may be made by sending a written request to
the Transfer Agent accompanied by any share certificates for the shares to be
exchanged. All written requests for exchanges must be signed by the shareholder,
and all certificates submitted for exchange must be endorsed by the shareholder
with signature guaranteed. (See "How to Sell Shares - Other Redemption
Matters.")
 
2.  EXCHANGES BY TELEPHONE.  A shareholder who has elected telephone exchange
privileges may make a telephone exchange request by calling the Transfer Agent
at (800) 338-1348 or (612) 667-8833 and providing the shareholder's account
number, the exact name in which the shareholder's shares are registered and the
shareholder's social security or taxpayer identification number. (See "How to
Sell Shares - Other Redemption Matters.")
 
AUTOMATIC INVESTMENT PLAN
 
Under the Funds' Automatic Investment Plan, shareholders may authorize monthly
amounts of $50 or more to be withdrawn automatically from the shareholder's
designated bank account (other than passbook savings) and sent to the Transfer
Agent for investment in either A or B Shares of a Fund. Shareholders wishing to
use this plan must complete an application which may be obtained by writing or
calling the Transfer Agent. The Trust may
 
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modify or terminate the automatic investment plan with respect to any
shareholder in the event that the Trust is unable to settle any transaction with
the shareholder's bank. If the Automatic Investment Plan is terminated before
the shareholder's account totals $1,000, the Trust reserves the right to close
the account in accordance with the procedures described under "How to Sell
Shares - Other Redemption Matters."
 
INDIVIDUAL RETIREMENT ACCOUNTS
 
The Funds may be a suitable investment vehicle for part or all of the assets
held in individual retirement accounts ("IRAs"). An IRA account application form
may be obtained by contacting the Trust at (800) 338-1348 or (612) 667-8833.
Generally, all contributions and investment earnings in an IRA will be
tax-deferred until withdrawn. Individuals may make tax-deductible IRA
contributions of up to a maximum of $2,000 annually. However, the deduction will
be reduced if the individual or, in the case of a married individual filing
jointly, either the individual or the individual's spouse is an active
participant in an employer-sponsored retirement plan and has adjusted gross
income above certain levels.
 
An employer may also contribute to an individual's IRA as part of a Savings
Incentive Match Plan for Employees, or "SIMPLE plan," established after December
31, 1996. Under a SIMPLE plan, an employee may contribute up to $6,000 annually
to the employee's IRA, and the employer must generally match such contributions
up to 3% of the employee's annual salary. Alternatively, the employer may elect
to contribute to the employee's IRA 2% of the lesser of the employee's earned
income or $150,000.
 
The foregoing discussion regarding IRAs is based on regulations in effect as of
June 1, 1997 and summarizes only some of the important federal tax
considerations generally affecting IRA contributions made by individuals or
their employers. It is not intended as a substitute for tax planning. Investors
should consult their tax advisors with respect to their specific tax situations
as well as with respect to state and local taxes.
 
AUTOMATIC WITHDRAWAL PLAN
 
A shareholder whose Shares in a single account total $1,000 or more may
establish a withdrawal plan to provide for the preauthorized payment from the
shareholder's account of $250 or more on a monthly, quarterly, semi-annual or
annual basis. Under the withdrawal plan, sufficient shares in the shareholder's
account are redeemed to provide the amount of the periodic payment and any
taxable gain or loss is recognized by the shareholder upon redemption of the
shares. Shareholders wishing to utilize the withdrawal plan may do so by
completing an application which may be obtained by
 
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writing or calling the Transfer Agent. The Trust may suspend a shareholder's
withdrawal plan without notice if the account contains insufficient funds to
effect a withdrawal or if the account balance is less than $1,000 at any time.
 
REOPENING ACCOUNTS
 
A shareholder may reopen an account, without filing a new account application
form, at any time within one year after the shareholder's account is closed,
provided that the information on the account application form on file with the
Trust is still applicable.
 
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                                                   9.  DIVIDENDS AND TAX MATTERS
 
DIVIDENDS
 
Dividends of Stable Income Fund's and Intermediate Government Income Fund's net
investment income are declared and paid monthly. Dividends of Income Fund's and
Total Return Bond Fund's net investment income are declared daily and paid
monthly. Distributions of net capital gain, if any, realized by a Fund are
distributed annually. Dividends and distributions paid by a Fund with respect to
each class of shares are calculated in the same manner and at the same time. The
per share dividends on a Fund's B Shares will be lower than the per share
dividends on A Shares as a result of the distribution services fees and
maintenance fees applicable to B Shares.
 
Shareholders may choose to have dividends and distributions of a Fund reinvested
in shares of that Fund (the "Reinvestment Option"), to receive dividends and
distributions in cash (the "Cash Option") or to direct dividends and
distributions to be reinvested in shares of another fund of the Trust (the
"Directed Dividend Option"). All dividends and distributions are treated in the
same manner for federal income tax purposes whether received in cash or
reinvested in shares of a fund.
 
Under the Reinvestment Option, all dividends and distributions of a Fund are
automatically invested in additional shares of that Fund. All dividends and
distributions are reinvested at a Fund's net asset value as of the payment date
of the dividend or distribution. Shareholders are assigned this option unless
one of the other two options is selected. Under the Cash Option, all dividends
and distributions are paid to the shareholder in cash. Under the Directed
Dividend Option, shareholders of a Fund whose shares in a single account of that
Fund total $10,000 or more may elect to have all dividends and distributions
reinvested in shares of another fund of the Trust, provided that those shares
are eligible for sale in the shareholder's state of residence. For further
information concerning the Directed Dividend Option, shareholders should contact
the Transfer Agent.
 
TAX MATTERS
 
Each Fund intends to qualify for each fiscal year to be taxed as a "regulated
investment company" under the Internal Revenue Code of 1986 (the "Code"). As
such, each Fund will not be liable for federal income and excise taxes on the
net investment income and capital gain distributed to its shareholders. Because
each Fund intends to distribute all of its net investment income and net capital
gain each year, each Fund should thereby avoid all federal income and excise
taxes.
 
Dividends paid by a Fund out of its net investment income (including net
short-term capital gain) are taxable to shareholders of the Fund as ordinary
 
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income. Pursuant to the Taxpayer Relief Act of 1997, two different tax rates
apply to net capital gains -- that is, the excess of net gains from capital
assets held for more than one year over net losses from capital assets held for
not more than one year. One rate (generally 28%) applies to net gains on capital
assets held for more than one year but not more than 18 months ("mid-term
gains"), and a second rate (generally 20%) applies to the balance of such net
capital gains ("adjusted net capital gains"). Distributions of mid-term gains
and adjusted net capital gains will be taxable to shareholders as such,
regardless of how long a shareholder has held shares in the Fund. If a
shareholder holds Shares for six months or less and during that period receives
a distribution of net capital gain, any loss realized on the sale of the Shares
during that six-month period will be a long-term capital loss to the extent of
the distribution. Dividends from Stable Income Fund and Intermediate Government
Income Fund and distributions reduce the net asset value of the Fund paying the
dividend or distribution by the amount of the dividend or distribution.
Furthermore, these dividends or a distribution made shortly after the purchase
of Shares by a shareholder, although in affect a return of capital to that
particular shareholder, will be taxable to the shareholder as described above.
 
Each Fund is required by federal law to withhold 31% of reportable payments
(which may include dividends, capital gain distributions and redemptions) paid
to a shareholder who fails to provide the Fund with a correct taxpayer
identification number or to make required certifications, or who is subject to
backup withholding.
 
Reports containing appropriate information with respect to the federal income
tax status of dividends and distributions paid during the year by each Fund will
be mailed to shareholders shortly after the close of each calendar year.
 
CORE PORTFOLIOS. Each Core Portfolio is not required to pay federal income taxes
on its net investment income and capital gain, as it is treated as a partnership
for federal income tax purposes. All interest, dividends and gains and losses of
a Core Portfolio are deemed to have been "passed through" to the Funds investing
in the Core Portfolio in proportion to the Funds' interests in the Core
Portfolio, regardless of whether such amounts have been distributed by the Core
Portfolio to the Funds.
 
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                                                          10.  OTHER INFORMATION
 
BANKING LAW MATTERS
 
Federal banking rules generally permit a bank or bank affiliate to act as
investment adviser, transfer agent, or custodian to an investment company and to
purchase shares of the investment company as agent for and upon the order of a
customer and, in connection therewith, to retain a sales charge or similar
payment. Forum believes that Norwest and any bank or other bank affiliate also
may perform Processing Organization or similar services for the Trust and its
shareholders without violating applicable federal banking rules. If a bank or
bank affiliate were prohibited in the future from so acting, changes in the
operation of the Trust could occur and a shareholder serviced by the bank or
bank affiliate may no longer be able to avail itself of those services. It is
not expected that shareholders would suffer any adverse financial consequences
as a result of any of these occurrences.
 
DETERMINATION OF NET ASSET VALUE
 
The net asset value per share of each class of each Fund is determined as of
4:00 p.m., Eastern Time, on each Fund Business Day by dividing the value of the
Fund's net assets (i.e., the value of its securities and other assets less its
liabilities) by the number of shares outstanding at the time the determination
is made. Securities owned by a Fund or Portfolio for which market quotations are
readily available are valued at current market value or, in their absence, at
fair value as determined by the Board or the Core Board or pursuant to
procedures approved by the Board or the Core Board, as applicable. The Funds
only determine net asset value on Fund Business Days.
 
PERFORMANCE INFORMATION
 
A Fund's performance may be quoted in terms of yield or total return. All
performance information is based on historical results and is not intended to
indicate future performance. A Fund's yield is a way of showing the rate of
income the Fund earns on its investments as a percentage of the Fund's share
price. To calculate standardized yield, a Fund takes the income it earned from
its investments for a 30-day period (net of expenses), divides it by the average
number of shares entitled to receive dividends, and expresses the result as an
annualized percentage rate based on the Fund's share price at the end of the
30-day period. A Fund's total return shows its overall change in value,
including changes in share price and assuming all the Fund's dividends and
distributions are reinvested. A cumulative total return reflects a Fund's
performance over a stated period of time. An average annual total return
reflects the hypothetical annually compounded return that would have produced
the same cumulative total return if the Fund's performance had been constant
over the entire period. Because average annual returns tend to smooth out
 
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variations in the Funds' returns, shareholders should recognize that they are
not the same as actual year-by-year results. Published yield quotations are, and
total return figures may be, based on amounts invested in a Fund net of sales
charges that may be paid by an investor. A computation of yield or total return
that does not take into account sales charges paid by an investor will be higher
than a similar computation that takes into account payment of sales charges.
 
The Funds' advertisements may reference ratings and rankings among similar
mutual funds by independent evaluators such as Morningstar, Inc., Lipper
Analytical Services, Inc. and IBC Financial Data, Inc. In addition, the
performance of a Fund may be compared to securities indices. These indices may
be comprised of a composite of various recognized securities indices to reflect
the investment policies of a Fund that invests its assets using different
investment styles. Indices are not used in the management of a Fund but rather
are standards by which an Adviser and shareholders may compare the performance
of a Fund to an unmanaged composite of securities with similar, but not
identical, characteristics as the Fund. This material is not to be considered
representative or indicative of future performance. All performance information
for a Fund is calculated on a class basis.
 
THE TRUST AND ITS SHARES
 
The Trust has an unlimited number of authorized shares of beneficial interest.
The Board may, without shareholder approval, divide the authorized shares into
an unlimited number of separate portfolios or series (such as a Fund) and may
divide portfolios or series into classes of shares (such as A Shares); the costs
of doing so will be borne by the Trust. Currently the authorized shares of the
Trust are divided into thirty-nine separate series.
 
OTHER CLASSES OF SHARES. The Funds currently issue three classes of shares, A
Shares, B Shares and I Shares. I Shares are offered to fiduciary, agency and
custodial clients of bank trust departments, trust companies and their
affiliates without any sales charges. Each class of a Fund will have a different
expense ratio and may have different sales charges (including distribution
fees). Each class' performance is affected by its expenses and sales charges.
For more information on any other class of shares of the Funds investors may
contact the Transfer Agent at (612) 667-8833 or (800) 338-1348 or the Funds'
distributor. Investors may also contact their Norwest sales representative to
obtain information about the other classes.
 
SHAREHOLDER VOTING AND OTHER RIGHTS. Each share of each series of the Trust and
each class of shares has equal dividend, distribution, liquidation and voting
rights, and fractional shares have those rights proportionately, except that
expenses related to the distribution of the shares of each class (and certain
other expenses such as transfer agency and administration expenses)
 
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are borne solely by those shares and each class votes separately with respect to
the provisions of any Rule 12b-1 plan which pertains to the class and other
matters for which separate class voting is appropriate under applicable law.
Generally, shares will be voted in the aggregate without reference to a
particular series or class, except if the matter affects only one series or
class or voting by series or class is required by law, in which case shares will
be voted separately by series or class, as appropriate. Delaware law does not
require the Trust to hold annual meetings of shareholders, and it is anticipated
that shareholder meetings will be held only when specifically required by
federal or state law. Shareholders (and Trustees) have available certain
procedures for the removal of Trustees. There are no conversion or preemptive
rights in connection with shares of the Trust. All shares when issued in
accordance with the terms of the offering will be fully paid and nonassessable.
Shares are redeemable at net asset value, at the option of the shareholders,
subject to any contingent deferred sales charge that may apply. A shareholder in
a series is entitled to the shareholder's pro rata share of all dividends and
distributions arising from that series' assets and, upon redeeming shares, will
receive the portion of the series' net assets represented by the redeemed
shares.
 
Each Core Portfolio normally will not hold meetings of investors except as
required by the 1940 Act. Each investor in a Core Portfolio will be entitled to
vote in proportion to its relative beneficial interest in the Core Portfolio.
When required by the 1940 Act and other applicable law, a Fund will solicit
proxies from its shareholders and will vote its interest in a Core Portfolio in
proportion to the votes cast by its shareholders.
 
As of September 2, 1997, Norwest Bank may be deemed to have controlled Stable
Income Fund and Norwest Bank Colorado, N.A., may be deemed to have controlled
Total Return Bond Fund through investment in the Funds by their customers. From
time to time, these shareholders or other shareholders may own a large
percentage of the Shares of a Fund and, accordingly, may be able to greatly
affect (if not determine) the outcome of a shareholder vote.
 
CORE AND GATEWAY STRUCTURE
 
Stable Income Fund and Total Return Bond Fund each seek to achieve its
investment objective by investing all of its investable assets in its
corresponding Core Portfolio, that has the same investment objective and
substantially identical investment policies as the Fund. Accordingly, each Core
Portfolio directly acquires portfolio securities and a Fund investing in the
Core Portfolio acquires an indirect interest in those securities. Each Core
Portfolio is a separate series of Core Trust, a business trust organized under
the laws of the State of Delaware in 1994. Core Trust is registered under the
,1940 Act as an open-end, management, investment company. The assets of each
Core Portfolio belong only to, and the liabilities of each Core Portfolio are
borne solely by, that Core Portfolio and no other portfolio of Core Trust.
 
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THE CORE PORTFOLIO. A Fund's investment in a Core Portfolio is in the form of a
non-transferable beneficial interest. All investors in a Core Portfolio will
invest on the same terms and conditions and will pay a proportionate share of
the Core Portfolio's expenses. As of October 1, 1997, several other funds of the
Trust invested a portion of their assets in Stable Income Portfolio and Total
Return Bond Portfolio.
 
A Core Portfolio will not sell its shares directly to members of the general
public. Another investor in a Core Portfolio, such as an investment company,
that might sell its shares to members of the general public would not be
required to sell its shares at the same public offering price as any Fund, and
could have different advisory and other fees and expenses than a Fund.
Therefore, Fund shareholders may have different returns than shareholders in
another investment company that invests in a Core Portfolio. Information
regarding any such funds is available from Core Trust by calling Forum at (207)
879-0001.
 
CERTAIN RISKS OF INVESTING IN CORE PORTFOLIOS. A Fund's investment in a Core
Portfolio may be affected by the actions of other large investors in that Core
Portfolio. For example, if Total Return Bond Portfolio had a large investor
other than Total Return Bond Fund that redeemed its interest, Total Return Bond
Portfolio's remaining investors (including the Fund) might, as a result,
experience higher pro rata operating expenses, thereby producing lower returns.
As there may be other investors in a Core Portfolio, there can be no assurance
that any issue that receives a majority of the votes cast by a Fund's
shareholders will receive a majority of votes cast by all investors in a Core
Portfolio; indeed, other investors holding a majority interest in a Core
Portfolio could have voting control of the Core Portfolio.
 
Each Fund may withdraw its entire investment from a Core Portfolio at any time,
if the Board determines that it is in the best interests of the Fund and its
shareholders to do so. A Fund might withdraw, for example, if there were other
investors in a Core Portfolio with power to, and who did by a vote of all
investors (including the Fund), change the investment objective or policies of
the Core Portfolio in a manner not acceptable to the Board. A withdrawal could
result in a distribution in kind of portfolio securities (as opposed to a cash
distribution) by the Core Portfolio. That distribution could result in a less
diversified portfolio of investments for the Fund and could affect adversely the
liquidity of the Fund's portfolio. If the Fund decided to convert those
securities to cash, it would incur brokerage fees or other transaction costs. If
the Fund withdrew its investment from a Core Portfolio, the Board would consider
what action might be taken, including the management of the Fund's assets
directly by the Adviser or the investment of the Fund's assets in another pooled
investment entity. The inability of the Fund to find a suitable
 
                                       72
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replacement investment, in the event the Board decided not to permit the
Advisers to manage the Fund's assets directly, could have a significant impact
on shareholders of the Fund.
 
Investment decisions are made by the portfolio managers of each Core Portfolio
independently. Therefore the portfolio manager of one Core Portfolio in which a
Fund invests may purchase shares of the same issuer whose shares are being sold
by the portfolio manager of another Core Portfolio in which the Fund invests.
This could result in an indirect expense to the Fund without accomplishing any
investment purpose.
 
NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS, THE STATEMENT OF
ADDITIONAL INFORMATION AND THE FUNDS' OFFICIAL SALES LITERATURE IN CONNECTION
WITH THE OFFERING OF THE FUNDS' SHARES, AND IF GIVEN OR MADE, SUCH INFORMATION
OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE
TRUST. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER IN ANY STATE IN WHICH, OR TO
ANY PERSON TO WHOM, SUCH OFFER MAY NOT LAWFULLY BE MADE.
 
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          SHAREHOLDER INFORMATION:

               Norwest Bank Minnesota, N.A.
               733 Marquette Avenue
               Minneapolis, Minnesota 55479-0040
               612-667-8833 (MINNEAPOLIS/ST. PAUL)
               800-338-1348 (ELSEWHERE)

          -COPYRIGHT- 1997 NORWEST ADVANTAGE FUNDS
          MFBPB002 10/97





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