IAA TRUST GROWTH FUND INC
497, 1998-11-10
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<PAGE>   1


[PHOTO] Additional Information

ANNUAL/SEMI-ANNUAL REPORT TO SHAREHOLDERS:               Prospectus
Additional information about each fund's
investments is available in the annual and            October 28, 1998
semi-annual reports to shareholders. In the 
annual report, you will find a discussion of
the market conditions and investment
strategies that significantly affected each
fund's performance during its last fiscal
year.

STATEMENT OF ADDITIONAL INFORMATION (SAI):
The SAI contains more detailed
information on all aspects of the funds. 
It has been filed with the Securities and
Exchange Commission and is incorporated
by reference.
                                                            

TO REQUEST A FREE COPY OF THE                   IAA Trust Growth Fund
CURRENT ANNUAL/SEMI-ANNUAL          
REPORT OR SAI, PLEASE WRITE OR CALL       IAA Trust Asset Allocation Fund
FPS BROKER SERVICES, INC. (THE CURRENT       
DISTRIBUTOR) THROUGH DECEMBER OF 1998.     IAA Trust Tax Exempt Bond Fund
FPSB WILL BE ACQUIRED BY FIRST DATA
DISTRIBUTORS, INC. IN JANUARY OF 1999        IAA Trust Money Market Fund
AND FDDI WILL BE YOUR DISTRIBUTOR WHEN
THE CORPORATE REORGANIZATION IS        IAA Trust Short-Term Government Bond Fund
COMPLETE.
THERE WILL BE NO CHANGE TO THE              IAA Trust Long-Term Bond Fund
ADDRESS OR PHONE NUMBER, WHICH
SHALL REMAIN AS FOLLOWS:
    3200 Horizon Drive                     
    P.O. Box 61503             
    King of Prussia, PA 19406-0903           
    (800) 245-2100
                                       
    or contact
    IAA Trust Company                       
    (309) 557-3222

    You may visit the SEC's internet website (www.sec.gov) to
    view reports and other information about the funds.

    In addition, this information may be obtained in person at
    the SEC's Public Reference Room in Washington, D.C.
    (telephone 800-SEC-0330) or by mail by sending your
    request along with a duplicating fee, to the SEC's Public
    Reference Section, Washington, D.C. 20549-6009

                                                   
The securities described in this
prospectus have not been approved                                IAA
or disapproved by the Securities and              [LOGO]        Trust
Exchange Commission. The Securities                            Company
and Exchange Commission has also
not passed upon the accuracy or                   High-caliber asset management
adequacy of this prospectus. Any
representation to the contrary is a               808 IAA Drive
criminal offense.                                 Bloomington, IL 61702


SEC file #811-1338, #811-2839, #811-2840 and #811-3186

<PAGE>   2
[Photo]   Fees and Expenses of the Funds
 
The tables below describe the fees and expenses that you may pay if you buy and
hold shares of the funds.
 
SHAREHOLDER FEES (fees paid directly from your investment):
 
<TABLE>
<S>                                                            <C>
Maximum Sales Load Imposed on Purchases (as a percentage of
  offering price)...........................................   None
Maximum Deferred Sales Load (as a percentage of offering
  price)....................................................   None
Maximum Sales Load on reinvested dividends (as a percentage
  of offering price)........................................   None
Redemption Fees.............................................   None
Exchange Fee................................................   None
Maximum Account Fee.........................................   None
</TABLE>
 
ANNUAL FUND OPERATING EXPENSES (expenses that are deducted from each fund's
assets):
 
<TABLE>
<CAPTION>
                                                                                                         TOTAL ANNUAL FUND
                                                 MANAGEMENT FEES   DISTRIBUTION FEES   OTHER EXPENSES   OPERATING EXPENSES*
                                                 ---------------   -----------------   --------------   -------------------
<S>                                              <C>               <C>                 <C>              <C>
Growth Fund....................................       0.75%              0.02%              0.25%              1.02%
Asset Allocation Fund..........................       0.75%              0.01%              0.49%              1.25%
Tax Exempt Bond Fund...........................       0.50%              0.04%              0.47%              1.01%
Money Market Fund..............................       0.50%              0.00%              0.33%              0.83%
Short-Term Government Bond Fund................       0.50%              0.03%              0.39%              0.92%
Long-Term Bond Fund............................       0.75%              0.03%              0.34%              1.12%
</TABLE>
 
- ---------------
 
* The annual fund operating expenses in the table reflect expenses before
  voluntary fee waivers and/or reimbursements from the adviser. Actual total
  operating expenses for the fiscal year ended June 30, 1998 after voluntary fee
  waivers and/or reimbursements were 1.00% for the Growth Fund, 1.21% for the
  Asset Allocation Fund, 0.97% for the Tax Exempt Bond Fund, 0.81% for the Money
  Market Fund, 0.86% for the Short-Term Government Bond Fund and 0.89% for the
  Long-Term Bond Fund. The funds expect the expense subsidy to continue through
  the current fiscal year, although there is no guarantee that it will do so.
  Distribution fees represent amounts incurred during the last fiscal year. The
  maximum amount under each fund's plan is 0.25% on an annual basis. The Money
  Market Fund does not have a distribution plan. IAA Trust Company serves as the
  funds' custodian, without compensation, after voluntary waivers. For the
  fiscal year ended June 30, 1998, IAA Trust Company waived $34,908, $6,290,
  $7,787, $9,200, $5,429, and $6,891, respectively, for custodian fees for the
  Growth Fund, Asset Allocation Fund, Tax Exempt Bond Fund, Money Market Fund,
  Short-Term Government Bond Fund and the Long-Term Bond Fund.
 
                                                                               2
 
<PAGE>   3
 
EXAMPLE
 
This example is designed so that you may compare the cost of investing in the
funds with the cost of investing in other mutual funds. The example assumes
that:
 
      - you invest $10,000 for the time periods indicated;
 
      - you redeem all of your shares at the end of the time periods;
 
      - your investment has a hypothetical 5% return each year;
 
      - all distributions are reinvested; and
 
      - each fund's operating expenses remain the same.
 
Because actual return and expenses will be different, the example is for
comparison purposes only. Each fund's actual performance and expenses may be
higher or lower. Based on the above assumptions, your costs for each fund would
be:
 
<TABLE>
<CAPTION>
                                                         1 YEAR    3 YEARS    5 YEARS    10 YEARS
                                                         ------    -------    -------    --------
<S>                                                      <C>       <C>        <C>        <C>
Growth Fund............................................   $104      $325       $563       $1,248
Asset Allocation Fund..................................   $127      $397       $686       $1,511
Tax Exempt Bond Fund...................................   $103      $322       $558       $1,236
Money Market Fund......................................   $ 85      $265       $460       $1,025
Short-Term Government Bond Fund........................   $ 94      $293       $509       $1,131
Long-Term Bond Fund....................................   $114      $356       $617       $1,363
</TABLE>
 
                                                                               3
<PAGE>   4
[PHOTO]   Growth Fund
 
[ICON]
 
INVESTMENT GOAL
 
Growth of capital. Dividend income, if any, will be incidental to this goal.
 
[ICON]
 
PRINCIPAL STRATEGY
 
The fund invests principally in common stocks and other equity securities of
well-established, large-capitalization companies that are determined to have
above-average long-term growth potential. In selecting stocks, the portfolio
managers look for growth rates of earnings and dividends that are in excess of
the stock's price-to-earnings ratio. This is a growth-oriented strategy. Growth
in sales and revenues are also important. Companies must also have reasonable
debt ratios for the industry in which they operate, be profitable, usually have
proprietary products, and have high barriers to entry that make competition
difficult. The stock must also fit into our portfolio scheme and add to
diversification. Current income is not a significant factor in stock selection.
 
The fund may also invest in fixed-income securities such as convertible bonds
and convertible preferred stocks when the portfolio managers believe the
risk/reward characteristics warrant such action. The fixed-income securities
will be rated at the time of purchase within the four highest grades assigned by
independent ratings agencies or in non-rated equivalents.
 
                                                        WHAT IS THE S&P 500? The
                                                        fund uses the S&P 500
                                                        for performance
                                                        comparisons. The S&P 500
                                                        is a major stock market
                                                        index (or "benchmark")
                                                        comprised of 500
                                                        companies representing a
                                                        broad range of
                                                        industries. Standard &
                                                        Poor's, a division of
                                                        the McGraw-Hill
                                                        Companies, Inc., created
                                                        the index. Companies
                                                        included in the S&P 500
                                                        are large, industry
                                                        leaders and are
                                                        financially and
                                                        operationally stable.
                                                        Their stocks tend to
                                                        trade frequently and are
                                                        easy to buy and sell.
                                                        The S&P 500 is
                                                        constructed using market
                                                        weights to provide a
                                                        broad indicator of stock
                                                        price movements. Changes
                                                        in the makeup of the S&P
                                                        500 are not made very
                                                        often. Companies are
                                                        removed from the index
                                                        if they no longer meet
                                                        certain standards.

[ICON]
 
IMPORTANT RISKS
 
There are risks involved with any investment, but the risks associated with an
investment in the fund include:
 
  - stock market risk, or the risk that the price of securities held by the fund
    will rise or fall due to various conditions or circumstances which may be
    unpredictable
 
  - there is the risk of losing your money (investment)
 
  - the success of the fund's investments depends on the
    portfolio managers' skill in assessing the potential of the stocks they buy
 
  - the value of any fixed-income security held by the fund is likely to decline
    when interest rates rise
 
                                                        
[ICON]
 
SUITABILITY
 
The fund may be a suitable investment for you if you:
 
  - have a long-term investment horizon such as investing for retirement or
    other future goals
 
  - can accept the risks of investing in a portfolio of common stocks
 
  - desire a fund that uses a growth-oriented strategy
 
  - can tolerate performance which varies from year to year
 
The fund may not be suitable for you if you have a short investment horizon, are
investing emergency reserve money, are seeking regular income, or find it
difficult to deal with an investment that may go up and down in value.
 
                                                                               4
<PAGE>   5
 
[ICON]
 
BAR CHART AND PERFORMANCE TABLE
 
The following bar chart and performance table provide some indication of the
risks of investing in the fund by showing changes in the fund's performance from
year to year and showing how the fund's average annual returns compare with
those of a broad measure of market performance. Both tables assume reinvestment
of dividends and distributions. As with all mutual funds, past performance is
not a prediction of future performance.
 
During the ten years ending December 31, 1997, the highest return for a quarter
was +15.79% for the quarter ended June 30, 1997 and the lowest return for a
quarter was -12.51% for the quarter ended September 30, 1990. The year-to-date
total return as of September 30, 1998 was -3.99%.
 
<TABLE>
<CAPTION>
Calendar Year                                    Annual Returns (%)
<S>                                              <C>
1988                                             13.75
1989                                             26.15
1990                                             -4.09
1991                                             27.85
1992                                              2.13
1993                                              6.34
1994                                              0.28
1995                                             31.07
1996                                             22.01
1997                                             19.71
</TABLE>
 
                                    PERFORMANCE TABLE
                  Average annual total returns as of December 31, 1997
 
<TABLE>
<CAPTION>
                                                                1 Year        5 Years        10 Years
                       ------------------------------------------------------------------------------
                       <S>                                      <C>           <C>            <C>
                       Growth Fund                              19.71%        15.34%          13.88%
                       S&P 500 Index                            33.35%        20.25%          18.02%
</TABLE>
 
[ICON]
 
PORTFOLIO MANAGERS
 
The fund is managed by a committee of portfolio managers led by Bruce Finks. Mr.
Finks was the fund's primary portfolio manager from 1994 to 1996 and became head
of the committee in 1998. Mr. Finks received his B.S. in finance from Illinois
State University in 1976 and earned his Chartered Financial Analyst designation
in 1987. Mr. Finks joined the adviser in 1992 as an Equity Investment Officer
and is currently the Director of Investments for the adviser. Other members of
the committee currently include John Jacobs (portfolio manager for the Asset
Allocation Fund), Bernard R. Dorneden and Derek Vogler. Mr. Dorneden received
his B.S. in business administration from Northern Illinois University in 1966,
his M.B.A. from Bradley University in 1970 and his Chartered Financial Analyst
designation in 1980. Mr. Dorneden joined the adviser in 1966 and his current
position is Vice President-Equities. Mr. Vogler, a graduate of Illinois State
University, received his B.S. in finance in 1993 and his M.B.A. in 1995. Mr.
Vogler joined the adviser in 1995 and his current position is Investment
Analyst.
 
                                                                               5
<PAGE>   6
[PHOTO]   Asset Allocation Fund
 
[ICON]
 
INVESTMENT GOALS
 
Growth of capital and current income.
 
[ICON]
 
PRINCIPAL STRATEGY
 
The fund combines the benefits of investing in a mix of stocks and bonds. Stocks
include common, preferred, and convertible preferred. Bonds include
convertibles, short-term interest bearing obligations, U.S. Government
securities, corporate, mortgage-backed and asset-backed securities. The fund's
mix of stocks and bonds varies in response to market conditions, investment
outlooks, and risk/reward characteristics of the two assets. In order to manage
risk, the fund will be invested in securities representing a number of different
industries.
 
The stock selection process involves the portfolio managers looking for growth
rates of earnings and dividends that are in excess of the stock's
price-to-earnings ratio. Growth in sales and revenues are also important.
Companies must also have reasonable debt ratios for the industry in which they
operate, be profitable, usually have proprietary products, and have high
barriers to entry that make competition difficult. The stock must also fit into
our portfolio scheme and add to diversification. Current income is not a
significant factor in stock selection.
 
Bonds are chosen based on which maturity ranges and which quality (i.e.,
government vs. corporate) offers the best return to the risk assumed. If the
adviser believes that interest rates may decline, longer maturity issues will be
purchased. Conversely, when the adviser believes that interest rates may rise,
emphasis is placed on shorter-term maturities.
 
The fund will invest in corporate debt securities. These securities will be
within the four highest grades assigned by independent ratings agencies or in
non-rated equivalents. The commercial paper in which the fund may invest will be
in the top two grades assigned by independent ratings agencies or in non-rated
equivalents.
 
                                                        WHAT IS CAPITAL? In
                                                        regard to the investment
                                                        goal of the fund,
                                                        capital refers to the
                                                        amount of money that you
                                                        invest in a fund. If you
                                                        choose to have your
                                                        dividends and other
                                                        distributions reinvested
                                                        in additional shares of
                                                        a fund, the amount of
                                                        the dividends or other
                                                        distributions will be
                                                        added to your initial
                                                        investment to increase
                                                        the amount of your
                                                        capital. If the price of
                                                        the fund's net asset
                                                        value increases because
                                                        of increases in the
                                                        value of the securities
                                                        in the fund, your
                                                        capital will also
                                                        increase. Conversely, if
                                                        the value of the fund's
                                                        investments go down and
                                                        the price of the fund's
                                                        shares decreases, you
                                                        may lose some of your
                                                        capital.
 
[ICON]
 
IMPORTANT RISKS
 
There are risks involved with any investment, but the risks associated with an
         investment in the fund include:
 
  - Stock market risk, or the risk that the price of a security will rise or
    fall due to various conditions or circumstances which may be unpredictable
 
  - the value of your investment will fluctuate in response to stock and bond
    market movements
 
  - the possibility that bond issuers may not make promised interest and
    principal payments on time or in full or interest rates may rise causing
    bond prices to decline in value
 
  - there is the risk of losing your money (investment)
 
                                                                               6
 
<PAGE>   7
 
[ICON]
 
SUITABILITY
 
The fund may be a suitable investment for you if you:
 
  - desire an investment that focuses on both growth and income
 
  - are investing for retirement or other long-term goals
 
  - can tolerate performance which varies from year to year
 
The fund may not be suitable for you if you have a shorter-term investment
horizon, are investing emergency reserve money, are seeking regular income, or
find it difficult to deal with an investment that may go up and down in value.
 
[ICON]
 
BAR CHART AND PERFORMANCE TABLE
 
The following bar chart and performance table provide some indication of the
risks of investing in the fund by showing changes in the fund's performance from
year to year and showing how the fund's average annual returns compare with
those of a broad measure of market performance. Both tables assume reinvestment
of dividends and distributions. As with all mutual funds, past performance is
not a prediction of future performance.
 
During the ten years ending December 31, 1997, the highest return for a quarter
was +11.09% for the quarter ended June 30, 1997 and the lowest return for a
quarter was -1.69% for the quarter ended March 31, 1994. The year-to-date total
return as of September 30, 1998 was +0.13%. The calendar year annual returns for
the years ended 1988 through 1992 reflect the operation of the fund with an
investment objective of income. The fund's performance for the calendar years
ended 1993 to present reflect the current investment objective of the fund.
 
<TABLE>
<CAPTION>
Calendar Year                                    Annual Returns (%)
<S>                                              <C>
1988                                              7.42
1989                                             13.46
1990                                              7.86
1991                                             12.98
1992                                              6.14
1993                                              9.03
1994                                             -1.01
1995                                             25.34
1996                                             12.96
1997                                             17.94
</TABLE>
 
                                    PERFORMANCE TABLE
                  Average annual total returns as of December 31, 1997
 
<TABLE>
<CAPTION>
                                                                      1 Year      5 Years      10 Years
                       --------------------------------------------------------------------------------
                       <S>                                            <C>         <C>          <C>
                       Asset Allocation Fund                          17.94%      12.50%        11.01%
                       S&P 500 Index                                  33.35%      20.25%        18.02%
                       Merrill Lynch U.S. Domestic Master Bond Index   9.66%       7.55%         9.21%
</TABLE>
 
[ICON]
 
PORTFOLIO MANAGER
 
The fund is managed by a committee of portfolio managers led by Bruce Finks.
Other members of the committee currently include John Jacobs, Bernard R.
Dorneden and Derek Vogler. Mr. Jacobs earned a B.S. in business and finance from
Illinois Wesleyan University in Bloomington. He is also a Chartered Financial
Analyst and has served as a member of the adviser's investment committee. Prior
to joining the adviser in 1975, Mr. Jacobs was an account executive for one of
the leading national brokerage firms. Mr. Jacobs has been managing the
fixed-income portion of the fund since December of 1978. Mr. Jacobs is also the
portfolio manager for both the Short-Term Government Bond Fund and the Long-Term
Bond Fund (since January, 1997).
 
                                                                               7
<PAGE>   8
[PHOTO]   Tax Exempt Bond Fund
 
[ICON]
 
INVESTMENT GOAL
 
Highest level of current interest income exempt from Federal income taxes.
 
[ICON]
 
PRINCIPAL STRATEGY
 
The fund invests at least 80% of its assets in municipal bonds. The remainder of
the portfolio may consist of temporary investments and cash. The municipal bonds
purchased by the fund are exempt from Federal income taxes. The fund will
purchase municipal bonds that are rated, at the time of purchase, within the
four highest grades assigned by independent rating agencies or in non-rated
equivalents. The portfolio manager may buy non-rated municipal bonds if the
adviser judges them to be equivalent to investment-grade. The fund may invest up
to 20% of net assets in non-rated bonds, taxable investments or investments
subject to the alternative minimum tax.
 
To reduce risk, the portfolio manager diversifies the investment portfolio
geographically and across different industry sectors. The fund purchases bonds
that meet its current duration specification, which is five to seven years.
Other considerations include interest rate anticipation, yield curve shifts,
shifts in quality spreads, shifts in geographic value (i.e., State vs. State,
State vs. City), rating upgrades and downgrades, and yield curve inflection
points.
 
                                                        WHAT ARE MUNICIPAL
                                                        SECURITIES? The fund
                                                        invests in municipal
                                                        securities which are
                                                        debt obligations of
                                                        states, cities, towns,
                                                        and other political
                                                        subdivisions, agencies
                                                        or public authorities
                                                        that pay interest exempt
                                                        from Federal income tax.
                                                        These securities are
                                                        often issued to raise
                                                        money for public
                                                        services and projects
                                                        such as schools,
                                                        hospitals and public
                                                        transportation systems.
                                                        Municipal securities may
                                                        be bonds, notes and
                                                        commercial paper, may
                                                        have a fixed or floating
                                                        rate of interest, or be
                                                        issued as zero coupon
                                                        bonds.
 
[ICON]
 
IMPORTANT RISKS
 
There are risks involved with any investment, but the risks associated with an
investment in the fund include:
 
  - interest rate risk, or the risk that the value of the securities the fund
    holds will rise or fall as a result of changes in interest rates
 
  - tax law risk, or the risk that changes in tax laws could affect the prices
    of municipal securities in an unfavorable way
 
  - credit risk, or the risk that issuers' credit ratings may be lowered or may
    not make interest and principal payments on time or in full
 
  - call risk, or the risk that a bond might be called or forcibly redeemed
    during a period of declining interest rates
 
  - there is the risk of losing your money (investment)
 
[ICON]
 
SUITABILITY
 
The Fund may be a suitable investment for you if you seek to:
 
  - earn regular monthly dividends exempt from Federal income tax
 
  - preserve investment capital over time
 
  - reduce taxes on investment income
 
  - invest in a fund which complements a more aggressive investment approach
 
You should not consider this fund for your IRA or 401(k) plan, or if you wish a
growth investment strategy or you do not pay U.S. income taxes.
 
                                                                               8
 
<PAGE>   9
 
[ICON]
 
BAR CHART AND PERFORMANCE TABLE
 
The following bar chart and performance table provide some indication of the
risks of investing in the fund by showing changes in the fund's performance from
year to year and showing how the fund's average annual returns compare with
those of a broad measure of market performance. Both tables assume reinvestment
of dividends and distributions. As with all mutual funds, past performance is
not a prediction of future performance.
 
During the ten years ending December 31, 1997, the highest return for a quarter
was +6.58% for the quarter ended March 31, 1995 and the lowest return for a
quarter was -6.03% for the quarter ended March 31, 1994. The year-to-date total
return as of September 30, 1998 was +5.52%.
 
<TABLE>
<CAPTION>
Calendar Year                                                           Annual Returns (%)
<S>                                                           <C>
1988                                                                           10.05
1989                                                                            8.14
1990                                                                            6.70
1991                                                                           10.06
1992                                                                            7.78
1993                                                                            8.84
1994                                                                           -6.10
1995                                                                           15.87
1996                                                                            2.96
1997                                                                            8.98
</TABLE>
 
                                    PERFORMANCE TABLE
                  Average annual total returns as of December 31, 1997
 
<TABLE>
<CAPTION>
                                                                      1 Year      5 Years      10 Years
                       --------------------------------------------------------------------------------
                       <S>                                            <C>         <C>          <C>
                       Tax Exempt Bond Fund                           8.98%        5.85%        7.19%
                       Lehman Brothers 7-year Municipal Bond
                         Index                                        7.67%        6.61%        7.50%
</TABLE>
 
         The taxable equivalent yield for the fund for the 30 days ending
         December 31, 1997 was 6.51%.
 
[ICON]
 
PORTFOLIO MANAGER
 
Mary S. Guinane is the portfolio manager for this fund. Ms. Guinane earned an
         M.B.A. from Illinois State University and a B.A. in psychology and
         sociology from St. Ambrose College. Ms. Guinane has been with the
         adviser since 1981 and has managed this fund since October 1, 1986.
 
                                                                               9
<PAGE>   10
[PHOTO] Money Market Fund

[ICON]
 
INVESTMENT GOALS
 
Maximum current income, a stable net asset value of $1.00 per share and daily
liquidity.
 
[ICON]
 
PRINCIPAL STRATEGY
 
To pursue its goal, the fund invests in a portfolio of high-quality, money
market securities maturing in one year or less. The fund will maintain a
dollar-weighted average portfolio maturity of 90 days or less. The securities in
which the fund invests include:
 
  - investments issued by U.S. banks, such as certificates of deposit or bankers
    acceptances and repurchase agreements
 
  - investments issued by the U.S. Government, its agencies and
    instrumentalities, such as notes and bonds
 
  - investments issued by corporations, such as high-quality debt securities
    (bonds, notes and debentures)
 
  - commercial paper rated in the top tier by two independent rating agencies,
    issued by foreign and domestic corporations, banks and government entities
 
The fund may invest up to 5% of its assets in non-rated securities which the
investment adviser has determined are of high-quality and present minimal credit
risks, subject to guidelines and criteria approved by the Board of Directors.
The fund may also invest in U.S. dollar denominated securities of foreign
issuers. The fund will not invest more than 5% of its assets in second tier
securities.
 
                                                        WHAT IS A MONEY MARKET
                                                        FUND? A money market
                                                        fund, such as our fund
                                                        described on this page,
                                                        is designed for current
                                                        income and invests in
                                                        very liquid assets such
                                                        as Federal securities,
                                                        certificates of deposit
                                                        and commercial paper
                                                        (very short-term bonds).
                                                        An investment in a money
                                                        market fund is neither
                                                        insured nor guaranteed
                                                        by the U.S. Government,
                                                        and there can be no
                                                        assurance that money
                                                        market funds will be
                                                        able to maintain a
                                                        stable net asset value
                                                        of $1.00 per share. Most
                                                        money market funds offer
                                                        checkwriting for easy
                                                        liquidity.
 
[ICON]
 
IMPORTANT RISKS
 
There are risks involved with any investment, but the risks associated with an
investment in the fund include:
 
  - risk that the value of the securities the fund holds will rise or fall as a
    result of changes in interest rates
 
  - your investment is not insured or guaranteed by the Federal Deposit
    Insurance Corporation or any other government agency
 
  - the rate of income will vary from day to day so that the monthly dividends
    paid to your account will vary
 
  - there is the risk of losing your money (investment) even though the fund
    seeks to preserve the value of your investment at $1.00 per share
 
[ICON]
 
SUITABILITY
 
The fund may be a suitable investment for you if you seek to:
 
  - earn regular monthly dividends
 
  - preserve your initial investment
 
  - invest for a short period of time
 
  - invest emergency reserves
 
You should not consider this fund if you want Federal deposit insurance, your
financial goals are at least several years away or you wish to have a growth
investment strategy.
 
An investment in the fund is not insured or guaranteed by the Federal Deposit
Insurance Corporation or any other government agency. Although the fund seeks to
preserve the value of your investment at $1.00 per share, it is possible to lose
money by investing in the fund.
 
                                                                              10
 
<PAGE>   11
 
[ICON]
 
BAR CHART AND PERFORMANCE TABLE
 
The following bar chart and performance table provide some indication of the
risks of investing in the fund by showing changes in the fund's performance from
year to year and showing how the fund's average annual returns compare with
those of a broad measure of market performance. Both tables assume reinvestment
of dividends and distributions. As with all mutual funds, past performance is
not a prediction of future performance.
 
During the ten years ending December 31, 1997, the highest return for a quarter
was +2.22% for the quarter ended June 30, 1989 and the lowest return for a
quarter was +0.45% for the quarter ended September 30, 1992. The year-to-date
total return as of September 30, 1998 was +3.67%.
 
<TABLE>
<CAPTION>
Calendar Year                                                          Annual Returns (%)
<S>                                                           <C>
1988                                                                           6.43
1989                                                                           8.36
1990                                                                           6.40
1991                                                                           4.95
1992                                                                           2.38
1993                                                                           2.71
1994                                                                           3.75
1995                                                                           5.13
1996                                                                           4.59
1997                                                                           4.81
</TABLE>
 
                                    PERFORMANCE TABLE
                  Average annual total returns as of December 31, 1997
 
<TABLE>
<CAPTION>
                                                                       1 Year      5 Years      10 Years
                       ---------------------------------------------------------------------------------
                       <S>                                             <C>         <C>          <C>
                       Money Market Fund                               4.81%        4.20%        5.03%
                       Salomon Brothers 3-month Treasury Bill Index    5.74%        4.81%        5.66%
</TABLE>
 
         The fund's 7-day yield for the period ending on September 30, 1998 was
         +4.79%. You may obtain the fund's current 7-day yield by calling (800)
         245-2100.
 
[ICON]
 
PORTFOLIO MANAGER
 
Robert L. Sammer is the portfolio manager for the fund. Mr. Sammer received his
Bachelor of Science degree in finance from Illinois State University in 1988 and
earned his M.B.A. in 1996. After joining the adviser in 1991, he served as
client services coordinator, corporate retirement and agency accounts
coordinator and now as investment analyst. Mr. Sammer has been portfolio manager
of the fund since 1994.
 
                                                                              11
<PAGE>   12
[PHOTO] Short-term Government Bond Fund
 
[ICON]
 
INVESTMENT GOAL
 
Maximum total return consistent with preservation of capital.
 
[ICON]
 
PRINCIPAL STRATEGY
 
The fund mainly invests in a portfolio of U.S. Government and agency securities
and expects to maintain a duration of less than three years. Under normal
conditions, the fund invests at least 65% of assets in government securities
including:
 
  - U.S. Government securities such as bills, notes and bonds
 
  - securities issued or guaranteed by U.S. Government agencies such as the
    Federal National Mortgage Association (Fannie Mae) and the Government
    National Mortgage Association (Ginnie Mae)
 
The remaining 35% may be invested in cash, commercial paper and high-grade
liquid debt securities. These securities include corporate debt instruments and
privately issued mortgage-related and asset-backed securities within the three
highest grades assigned by independent rating agencies or in non-rated
equivalents. We emphasize government securities. High-grade corporate and
asset-backed securities are purchased for their yield advantage versus
governments and agencies.
 
                                                        WHAT ARE U.S. GOVERNMENT
                                                        SECURITIES? The fund
                                                        mainly invests in U.S.
                                                        Government securities
                                                        which are bonds or other
                                                        debt obligations issued
                                                        by, or whose principal
                                                        and interest are
                                                        guaranteed by, the U.S.
                                                        Government or one of its
                                                        agencies or
                                                        instrumentalities. U.S.
                                                        Treasury securities and
                                                        some obligations of U.S.
                                                        Government agencies and
                                                        instrumentalities are
                                                        supported by the "full
                                                        faith and credit" of the
                                                        United States. Others
                                                        are backed by the right
                                                        of the issuer to borrow
                                                        from the U.S. Treasury
                                                        and others, only by the
                                                        credit of the issuing
                                                        agency or
                                                        instrumentality. U. S.
                                                        Government securities
                                                        generally have less
                                                        credit risk than other
                                                        debt obligations.  
 
[ICON]
 
IMPORTANT RISKS
 
There are risks involved with any investment, but the risks associated with an
investment in the fund include:
 
  - the U.S. Government does not guarantee the market value or the current yield
    of government securities or the net asset value of shares of the fund
 
  - a fall in the worldwide demand for U.S. Government securities could lower
    the prices of these securities
 
  - in some instances, when interest rates fall, mortgage- and asset-backed
    securities may incur prepayments which could adversely affect performance by
    lowering duration
 
  - conversely, when interest rates rise, mortgage- and asset-backed securities
    may extend duration due to lower than projected prepayments which could
    adversely affect investment returns
 
  - the value of the fund's shares will fluctuate and there is the risk of
    losing your money (investment)

 
[ICON]
 
SUITABILITY
 
The fund may be a suitable investment for you if you seek:
 
  - to earn higher yields than money market funds offer and are able to tolerate
    larger fluctuations in the value of shares
 
  - an investment for income
 
  - a bond fund that emphasizes highly creditworthy U.S. Government securities
 
You should not consider this fund if your primary investment objective is
absolute principal stability or if you are seeking growth of capital.
 
                                                                              12
 
<PAGE>   13
 
[ICON]
 
BAR CHART AND PERFORMANCE TABLE
 
A bar chart and performance table are not provided for this fund because it does
not have performance for one full calendar year. The fund commenced operations
on January 2, 1997.
 
[ICON]
 
PORTFOLIO MANAGER
 
John Jacobs is the portfolio manager of the fund. See "Asset Allocation Fund"
for Mr. Jacobs' biography.
 
                                                                              13
<PAGE>   14
[PHOTO] Long-term Bond Fund
 
[ICON]
 
INVESTMENT GOAL
 
High level of current income consistent with preservation of capital and
maintenance of liquidity.
 
[ICON]
 
PRINCIPAL STRATEGY
 
To pursue its goal, the fund invests in a portfolio of bonds and other debt
obligations (debentures, notes, mortgage-backed and asset-backed) and maintains
a dollar-weighted average maturity of more than 10 years. Under normal
conditions, the fund invests at least 80% of assets in the following:
 
  - debt obligations of corporations which are rated within the top three rating
    categories by independent rating agencies or in non-rated equivalents
 
  - securities issued by the U.S. Government or its agencies or 
    instrumentalities
 
  - securities of major U.S. banking institutions, obligations of international
    agencies and U.S. dollar denominated foreign debt securities
 
At least 65% of the value of the fund's total assets will be invested in bonds
(U.S. Government, corporate and convertible issues). The fund may invest up to
20% of its net assets in corporate bonds which are rated below investment-grade.
On occasion, up to 20% of the fund's net assets may be invested in commercial
paper within the two highest rating categories of independent rating agencies.
The fund may invest up to 10% of its assets in securities of foreign issuers.
The fund may also invest in zero coupon U.S. Government securities.
 
In managing its portfolio, the portfolio manager attempts to balance sensitivity
to interest rate movements with the potential for yields. The fund invests in
securities of longer-term maturities in order to obtain higher yields.
Securities with longer maturities, however, tend to be more sensitive to
interest rate changes.
 
                                                        WHAT IS A BOND? The fund
                                                        mainly invests in bonds.
                                                        A bond, which is also
                                                        called a debt security,
                                                        is a long-term
                                                        promissory note. The
                                                        issuer of the bond,
                                                        which could be the U.S.
                                                        Government, a
                                                        corporation, or a city
                                                        or state, borrows money
                                                        from investors and
                                                        agrees to pay back the
                                                        loan on a certain date.
                                                        Bonds vary widely in
                                                        maturity, security, and
                                                        type of issuer, although
                                                        most are sold in $1,000
                                                        denominations. Because
                                                        bond performance can be
                                                        influenced by different
                                                        factors than those that
                                                        drive the stock market,
                                                        bonds may move in
                                                        different cycles than
                                                        stocks.
 
[ICON]
 
IMPORTANT RISKS
 
There are risks involved with any investment, but the risks associated with an
investment in the fund include:
 
  - risk that the value of the securities the fund holds will rise or fall as a
    result of changes in interest rates, an issuer's actual or perceived
    creditworthiness or an issuer's ability to meet its obligations
 
  - call risk or the risk that a bond might be called or forcibly redeemed
    during a period of declining interest rates
 
  - the longer the average maturity of the bonds in the fund, the more the
    fund's share price will fluctuate in response to interest rate changes
 
  - the fund could lose money if any bonds it owns are downgraded in credit
    rating or go into default
 
  - in some instances, when interest rates fall, mortgage- and asset-backed
    securities may incur prepayments which could adversely affect performance by
    lowering duration
 
  - conversely, when interest rates rise, mortgage- and asset-backed securities
    may extend duration due to lower than projected prepayments which could
    adversely affect investment returns
 
  - there is the risk of losing your money (investment)
 
  - foreign securities carry additional risks, including currency, natural event
    and political risks
 
                                                                              14
 
<PAGE>   15
 
[ICON]
 
SUITABILITY
 
The fund may be a suitable investment for you if you seek:
 
  - a relatively conservative investment for income
 
  - a bond fund that invests in both corporate and U.S. Government securities
 
  - a fund to complement a portfolio of more aggressive investments
 
You should not consider this fund if you are seeking high growth or maximum
income or are investing emergency reserve money.
 
[ICON]
 
BAR CHART AND PERFORMANCE TABLE
 
A bar chart and performance table are not provided for this fund because it does
not have performance for one full calendar year. The fund commenced operations
on January 2, 1997.
 
[ICON]
 
PORTFOLIO MANAGER
 
John Jacobs is the portfolio manager of the fund. See "Asset Allocation Fund"
for Mr. Jacobs' biography.
 
                                                                              15
<PAGE>   16
IAA Trust Mutual Funds
 
MANAGEMENT OF THE FUNDS
 
IAA Trust Company, 808 IAA Drive, Bloomington, Illinois 61702 serves as the
investment adviser to the funds and is responsible for the selection and
on-going monitoring of the securities in each fund's investment portfolio and
managing the funds' business affairs. The adviser was organized in 1970 and has
no other investment company clients other than the funds.
 
DISTRIBUTION ARRANGEMENTS
 
You pay no sales charges to invest in the funds, either up-front or deferred.
The funds (with the exception of the Money Market Fund) have adopted separate
plans under rule 12b-1. These plans allow each fund to pay distribution fees for
the sale and distribution of its shares. For instance, fees are paid to persons
who sell the funds' shares. From time to time, additional cash compensation may
be paid to persons affiliated with Country Capital Management Company who reach
certain sales goals. Because these fees are paid out of the funds' assets on an
ongoing basis, over time these fees will increase the cost of your investment
and may cost you more than paying other types of sales charges. The maximum
amount which each fund may pay for rule 12b-1 plan expenses, on an annual basis,
is 0.25% of average net assets. While FPS Broker Services, Inc. currently serves
as the distributor for the funds on a best efforts basis, it is anticipated that
on or about January 1, 1999, such firm will be acquired by First Data
Distributors, Inc., which will provide substantially similar distribution
services.
 
YOUR INVESTMENT -- BUYING SHARES
 
PURCHASE PRICE: You pay no sales charge to invest in any of the funds. Shares of
all funds are sold at the net asset value per share (NAV) next determined after
receipt of the order by First Data Investor Services Group, Inc. The NAV for all
funds is calculated at the close of regular trading hours of the New York Stock
Exchange, normally 4:00 p.m. Eastern Standard Time. The Money Market Fund
reserves the right to calculate its net asset value more frequently than once a
day if deemed desirable. Each fund's investments are valued based on market
value, or where market quotations are not readily available, based on fair value
as determined in good faith by the funds' board of directors. The Money Market
Fund is valued based on an amortized cost method of valuation according to
procedures adopted under SEC regulations.
 
TIMING OF REQUESTS: All requests received by First Data Investor Services Group
before 4:00 p.m. Eastern Standard Time will be executed the same day, at that
day's closing share price. Orders received after 4:00 p.m. Eastern Standard Time
will be executed the following day, at that day's closing share price. Shares
will not be priced on days when the New York Stock Exchange is closed.
 
STOCK EXCHANGE CLOSINGS: Shares of the funds will not be priced and are not
available for purchase on the following days on which the New York Stock
Exchange is closed for trading: New Year's Day, Martin Luther King, Jr. Day,
Presidents' Day, Good Friday, Memorial Day, Independence Day, Labor Day,
Thanksgiving Day and Christmas Day.
 
RETIREMENT PLANS: The adviser offers a variety of retirement plans including a
prototype Defined Contribution Plan. This plan can invest in shares of all funds
except the Tax Exempt Bond Fund. For further information, please call (800)
245-2100. You may also establish IRA accounts -- Traditional IRAs, Spousal IRAs,
Roth IRAs or Education IRAs. To request that an IRA application be sent to you,
call (800) 422-8261. For individuals eligible to establish a Medical Savings
Account, the adviser sponsors a prototype plan which has been approved by the
IRS.
 
GENERAL INFORMATION: The funds reserve the right to reject any purchase order or
suspend the offering of shares of the funds. All investments must be in U.S.
dollars. The funds also reserve the right to vary the initial and subsequent
investment minimums, or to waive the minimum investment requirement for any
investor. The funds will automatically redeem shares if a purchase check is
returned for insufficient funds. The funds reserve the right to reject any third
party check greater than $5,000 used for the purchase of shares. However, third
party checks issued by IAA Trust Company, Illinois Agricultural Association, any
of the Country Companies or any of their affiliates will be accepted regardless
of their amount.
 
                                                                              16
 
<PAGE>   17
 
HOW TO BUY SHARES
 
<TABLE>
<CAPTION>
- -------------------------------------------------------    -------------------------------------------------------
TO OPEN AN ACCOUNT                                         TO ADD TO AN ACCOUNT
- -------------------------------------------------------    -------------------------------------------------------
<S>                                                        <C>
BY MAIL                                                    BY MAIL
- -------------------------------------------------------    -------------------------------------------------------
Complete the application.                                  Fill out an investment slip from a previous
Mail the application and your check to:                    confirmation and write your account number on your
        FIRST DATA INVESTOR SERVICES GROUP                 check. Mail the slip and your check to:
        3200 HORIZON DRIVE                                 FIRST DATA INVESTOR SERVICES GROUP
        P.O. BOX 61503                                     P.O. BOX 412797
        KING OF PRUSSIA, PA 19406-0903                     KANSAS CITY, MISSOURI 64141-2797
Please make check payable to the name of the fund you      Please make check payable to the name of the fund you
wish to invest in.                                         are investing in.
Minimum initial investment for the funds:                  Minimum additional investments for the funds:
  $1,000 for non-retirement accounts                       $100 if by mail for all accounts (retirement and non-
  $100 for retirement accounts including IRAs and          retirement accounts)
  medical savings accounts                                 $1,000 if by wire for all accounts
- -------------------------------------------------------    -------------------------------------------------------
BY WIRE                                                    BY WIRE
- -------------------------------------------------------    -------------------------------------------------------
To make a same-day wire investment, call (800)             Call (800) 245-2100. The wire must be received by 4:00
245-2100. The wire must be received by 4:00 p.m.           p.m. Eastern Standard Time for same day processing
Eastern Standard Time for same day processing (12:00       (12:00 noon Eastern Standard Time for the Money Market
noon Eastern Standard Time for the Money Market Fund).     Fund).
An account number will be assigned to you.                 Follow the instructions under TO OPEN AN ACCOUNT -- By
Call your bank with instructions to transmit funds to:     Wire.
    - UMB Bank, NA, ABA #10-10-00695                       The minimum additional investment made by wire must be
    - For: First Data Investor Services Group              for at least $1,000.
    - Account #98-7037-071-9
    - The fund name
    - Name(s) of account registration
Your bank may charge a wire fee.
Mail your completed application to First Data Investor
Services Group at the address above.
- -------------------------------------------------------    -------------------------------------------------------
BY AUTOMATIC INVESTMENT                                    BY AUTOMATIC INVESTMENT
- -------------------------------------------------------    -------------------------------------------------------
With an initial investment, indicate on your               If you wish to add the AUTOMATIC INVESTMENT PLAN after
application that you would like to participate in the      your account has initially been opened, call (800)
AUTOMATIC INVESTMENT PLAN. Return your application with    245-2100 to request the form.
your initial investment.                                   Complete and return the form along with any other
Subsequent investments will be drawn from your bank        required materials.
account and invested into the fund(s).                     Subsequent investments will be drawn from your bank
                                                           account and invested into the fund(s).
- -------------------------------------------------------    -------------------------------------------------------
BY EXCHANGE                                                BY EXCHANGE
- -------------------------------------------------------    -------------------------------------------------------
Call (800) 245-2100 to request an exchange of shares       Call (800) 245-2100 to request an exchange of shares
into another IAA Trust Mutual Fund.                        into another IAA Trust Mutual Fund.
- -------------------------------------------------------    -------------------------------------------------------
</TABLE>
 
                                                                              17
<PAGE>   18
IAA Trust Mutual Funds
 
YOUR INVESTMENT -- SELLING SHARES
 
TIMING OF REQUESTS: All requests received in good order by First Data Investor
Services Group before 4:00 p.m. Eastern Standard Time (12:00 noon Eastern
Standard Time for the Money Market Fund) will be executed the same day, at that
day's closing price. Requests received after 4:00 p.m. (12:00 noon Eastern
Standard Time for the Money Market Fund) will be executed the following day, at
that day's closing share price. Accounts in the Money Market Fund will earn
daily dividends up to the day before the date of redemption.
 
SELLING RECENTLY PURCHASED SHARES: If you wish to sell shares that were recently
purchased by check, the funds may delay mailing of your redemption check for up
to 15 business days after your redemption request to allow the purchase check to
clear. If you are considering redeeming shares soon after purchase, you should
purchase by bank wire or certified check to avoid delay.
 
SIGNATURE GUARANTEES: The funds may require additional documentation, or
signature guarantees on any redemptions in amounts over $25,000 in value or for
the redemption of corporate, partnership or fiduciary accounts, or for certain
types of transfer requests or account registration changes. A signature
guarantee helps protect against fraud. You can obtain one from most banks or
securities dealers, but not from a notary public. Please call (800) 245-2100 for
information on obtaining a signature guarantee.
 
HOW TO SELL SHARES
 
<TABLE>
<CAPTION>
- -------------------------------------------------------    -------------------------------------------------------
TO SELL FROM OR CLOSE AN ACCOUNT                           TO SELL FROM OR CLOSE AN ACCOUNT
- -------------------------------------------------------    -------------------------------------------------------
<S>                                                        <C>
BY MAIL -- ALL FUNDS                                       BY TELEPHONE -- ALL FUNDS
- -------------------------------------------------------    -------------------------------------------------------
Write a letter of instruction that includes:               If you have previously authorized redemptions by
  - The fund name, your account number, the name(s) in     telephone, call (800) 245-2100 before the close of
    which the account is registered and the dollar         business on any business day.
    value or number of shares you wish to sell.            Proceeds will normally be sent the next business day by
  - Include all signatures and any additional documents    first class mail, or if you prefer and pay the expense,
    that may be required.                                  they may be wired to your account ($1,000 minimum).
  - Mail your request to:                                  If you request a check, it will be sent to the address
      FIRST DATA INVESTOR SERVICES GROUP                   in which the account is registered.
      P.O. BOX 61503                                       Telephone redemptions are not available if a joint
      KING OF PRUSSIA, PA 19406-0903                       owner is under age 14.
  - A check will be mailed to the name(s) and address
    in which the account is registered.
- -------------------------------------------------------    -------------------------------------------------------
BY SYSTEMATIC WITHDRAWAL PLAN -- ALL FUNDS                 BY CHECK -- MONEY MARKET FUND ONLY
- -------------------------------------------------------    -------------------------------------------------------
Call us to request a form to add the SYSTEMATIC            When your account in the Money Market Fund is opened,
WITHDRAWAL PLAN, specifying the amount and frequency of    you will receive an initial supply of checks within 2
withdrawals you would like (monthly minimum is $25).       to 3 weeks if you choose so on the application.
Be sure to maintain an account balance of $5,000 or        The checks may be written in amounts from $100 minimum
more.                                                      to $100,000 maximum.
- -------------------------------------------------------
BY EXCHANGE
- -------------------------------------------------------
Call (800) 245-2100 to request an exchange of shares
into another IAA Trust Mutual Fund.
- -------------------------------------------------------
</TABLE>
 
                                                                              18
 
<PAGE>   19
 
YOUR INVESTMENT -- TRANSACTION POLICIES
 
EXECUTION OF REQUESTS: Each fund is open on those days when the New York Stock
Exchange is open, typically Monday through Friday. Buy and sell requests are
executed at the next net asset value to be calculated after your request is
accepted by First Data Investor Services Group.
 
CHECKWRITING TERMS: If you so request, the Money Market Fund will provide you
with an initial supply of checks. These checks may be written in any amount not
less than $100 nor more than $100,000. You continue to earn daily income
dividends until your check has cleared.
 
TELEPHONE REQUESTS: For your protection, telephone requests may be recorded in
order to verify their accuracy. In addition, First Data Investor Services Group
will take measures to verify the identity of the caller. If appropriate measures
are taken, First Data Investor Services Group is not responsible for any losses
that may occur to any account due to an unauthorized telephone call. At times of
peak activity, it may be difficult to place requests by phone.
 
EXCHANGE PRIVILEGES: You may exchange shares for shares of other IAA Trust
Mutual Funds without paying any fees or charges. If the exchange is made by
telephone, the new shares will be registered in the same manner as the shares
for which they were exchanged. A fund may change or cancel exchange policies at
any time, upon 60 days' notice to its shareholders. You may realize a capital
gain or loss for Federal income tax purposes when shares are exchanged.
 
ACCOUNTS WITH LOW BALANCES: If your account falls below $1,000, the fund may ask
you to increase your balance. If it is still below $1,000 after 30 days, the
fund may close your account and send you the proceeds.
 
INTEGRATED VOICE RESPONSE SYSTEM: You may obtain access to account information
by calling (800) 245-2100. The System provides share price and price change for
all the funds and gives account balances and history and allows sales or
exchanges of shares.
 
DISTRIBUTIONS AND TAXES
 
DIVIDEND REINVESTMENT: You may have your distributions reinvested in the fund or
mailed out by check. If you do not give the fund instructions, your
distributions will automatically be reinvested in the particular fund. There are
no fees or sales charges on reinvestments. You may not have distributions mailed
out by check if you participate in the Systematic Withdrawal Plan or any
Retirement Plans.
 
TIMING OF DISTRIBUTIONS: The funds generally distribute dividends from their net
investment income and net capital gains, if any. The Growth Fund typically pays
income dividends semi-annually. The Asset Allocation Fund, Short-Term Government
Bond Fund, Tax Exempt Bond Fund and the Long-Term Bond Fund typically pay
monthly dividends. The Money Market Fund declares and distributes dividends on
each day that its net asset value is determined and dividends are then paid to
you on a monthly basis.
 
TAXES: As long as a fund meets the requirements for being a tax-qualified
regulated investment company, which each fund in the past has done and intends
to do in the future, it pays no Federal income tax on the earnings it
distributes to shareholders. Dividends and distributions you receive from a
fund, whether reinvested or taken as cash, are generally considered taxable.
Dividends from net investment income are taxed as ordinary income. Capital gains
distributions are taxed based on how long a fund held the assets. Net short-term
capital gains are taxable to shareholders as ordinary income. Distributions of
net long-term capital gains are taxable as long-term capital gains. The tax
status of the distributions for each calendar year will be detailed in your
annual tax statement from each fund. Because everyone's tax situation is unique,
always consult your tax professional about Federal, state and local tax
consequences. An exchange of shares of a fund for shares of another fund is a
sale of fund shares for tax purposes.
 
                                                                              19
<PAGE>   20
IAA Trust Mutual Funds
 
TAX EXEMPT BOND FUND: The fund intends to pay federally tax-exempt interest
dividends to its shareholders. You may be subject to state and local taxes on
distributions of federally tax-exempt income from the fund. However, some
distributions may also be taxed for Federal income tax purposes (including all
capital gains distributions). You will be notified regarding the designation of
distributions. Information regarding the tax-exempt status of any distributions
will be mailed annually. The percentage of the monthly dividend which is
tax-exempt may vary from distribution to distribution.
 
BACKUP WITHHOLDING: By law, the funds must withhold 31% of your distributions
and proceeds if you have not provided complete, correct taxpayer information.
 
ACCOUNT STATEMENTS: You will receive an account statement after every
transaction that affects your account balance, after any change of name or
address of the registered owner, and in all other cases, semi-annually.
 
OTHER SECURITIES AND RISKS
 
Each fund's portfolio securities and investment practices offer certain
opportunities and carry various risks. Major investments and risk factors are
outlined in the front of the prospectus. Below are brief descriptions of other
securities and practices, along with their associated risks.
 
BONDS: The value of any bond held by a fund is likely to decline when interest
rates rise; this risk is greater for bonds with longer maturities. A less
significant risk is that a bond issuer could default on principal or interest
payments, causing a loss for the fund.
 
COMMERCIAL PAPER: Commercial paper is unsecured short-term promissory notes
issued by corporations and other entities. Maturities on these issues typically
vary from a few days to nine months.
 
DEFENSIVE INVESTING: The funds may, from time to time, take temporary defensive
positions that are inconsistent with each fund's principal investment strategies
in attempting to respond to adverse market, economic, political or other
conditions. When a fund takes a temporary defensive position it may not achieve
its investment goals.
 
FOREIGN SECURITIES: Foreign securities present risks beyond those of U.S.
securities. They are generally more volatile and less liquid than their U.S.
counterparts. Moreover, changes in currency exchange rates have the potential to
reduce or eliminate certain gains achieved in securities markets or create net
losses. These risks are usually higher for investments in less developed
markets.
 
WHEN-ISSUED SECURITIES: The funds may invest in securities prior to their date
of issue. These securities could fall in value by the time they are actually
issued, which may be any time from a few days to over a year.
 
REPURCHASE AGREEMENTS: The funds may buy securities with the understanding that
the seller will buy them back with interest at a later date. If the seller is
unable to honor its commitment to repurchase the securities, the funds could
lose money.
 
SECURITIES OF OTHER INVESTMENT COMPANIES: The funds may acquire securities of
other investment companies (including unit investment trusts) on the open market
if (1) the fund would not own more than 3% of the total outstanding voting stock
of such investment company; (2) such investment represents not more than 5% of
the value of the fund's assets; or (3) such investment plus investments in all
other investment companies represents not more than 10% of the value of the
fund's assets.

ZERO COUPONS: A zero coupon security is a debt security that is purchased and
traded at a discount to its face value because it pays no interest for some or
all of its life. Interest, however, is reported as income to the fund and the
fund is required to distribute to shareholders an amount equal to the amount
reported. Those distributions may force the fund to liquidate portfolio
securities at a disadvantageous time.
 
                                                                              20
 
<PAGE>   21
 
ASSET-BACKED SECURITIES: Asset-backed securities represent interests in pools of
debt (other than mortgage notes), such as credit card accounts. The principal
risks of asset-backed securities are that on the underlying obligations,
payments may be made more slowly, and rates of default may be higher than
expected. In addition, because some of these securities are new or complex,
unanticipated problems may affect their value or liquidity.
 
MORTGAGE-RELATED SECURITIES: These securities, which represent interests in
pools of mortgages, may offer attractive yields but generally carry additional
risks. The prices and yields of mortgage-related securities typically assume
that the securities will be redeemed at a given time before maturity. When
interest rates fall substantially, these securities usually are redeemed early
because the underlying mortgages are often prepaid. The fund would then have to
reinvest the money at a lower rate. The price or yield of mortgage-related
securities may fall if they are redeemed later than expected.
 
YEAR 2000 COMPLIANCE: The funds could be adversely affected if the computer
systems used by the funds and their service providers do not properly process
and calculate date-related information after December 31, 1999. The Year 2000
issue affects virtually all companies and organizations. While Year 2000-related
computer problems could have a negative effect on the funds, the adviser is
working to avoid such problems and to obtain assurances form the funds' service
providers that they are taking similar steps. Companies, organizations,
governmental entities and securities in which the funds invest could be affected
by the Year 2000 issue, but at this time the funds cannot predict the degree of
impact. To the extent the effect is negative, a fund's returns could be reduced.
 
                                                                              21
<PAGE>   22
 
FINANCIAL HIGHLIGHTS
 
The financial highlights tables are intended to help you understand the funds'
financial performance for the fiscal periods indicated. Certain information
reflects financial results for a single fund share. Total return shows how much
your investment in the fund(s) would have increased (or decreased) during each
period, assuming you had reinvested all dividends and distributions. These
figures have been audited by PricewaterhouseCoopers LLP, whose report, along
with the funds' financial statements, are included in the annual report which is
available upon request.
 
                                  GROWTH FUND
 
<TABLE>
<CAPTION>
                                                                 YEARS ENDED JUNE 30,
                                                 -----------------------------------------------------
                                                   1998        1997       1996       1995       1994
                                                 --------    --------    -------    -------    -------
<S>                                              <C>         <C>         <C>        <C>        <C>
Net asset value, beginning of year.............  $  22.51    $  18.88    $ 17.23    $ 15.16    $ 17.55
                                                 --------    --------    -------    -------    -------
  INCOME FROM INVESTMENT OPERATIONS
  Net investment income........................      0.17        0.15       0.23       0.22       0.27
  Net gains or losses on securities (both
    realized and unrealized)...................      2.19        4.81       3.23       3.45      (0.63)
                                                 --------    --------    -------    -------    -------
        Total from investment operations.......      2.36        4.96       3.46       3.67      (0.36)
                                                 --------    --------    -------    -------    -------
  LESS DISTRIBUTIONS
  Dividends from net investment income.........     (0.15)      (0.20)     (0.25)     (0.17)     (0.22)
  Distributions from capital gains.............     (1.68)      (1.13)     (1.56)     (1.43)     (1.81)
                                                 --------    --------    -------    -------    -------
    Total distributions........................     (1.83)      (1.33)     (1.81)     (1.60)     (2.03)
                                                 --------    --------    -------    -------    -------
Net asset value, end of year...................  $  23.04    $  22.51    $ 18.88    $ 17.23    $ 15.16
                                                 ========    ========    =======    =======    =======
TOTAL RETURN...................................     10.98%      28.54%     21.51%     26.68%     (2.42)%
RATIOS/SUPPLEMENTAL DATA
  Net assets, end of year (in 000's)...........  $160,315    $140,786    $84,800    $70,577    $59,448
  Ratio of expenses to average net assets:.....                                           .
      Before expense waiver....................      1.02%         --         --         --         --
      After expense waiver.....................      1.00%       1.16%      1.12%      1.14%      1.24%
  Ratio of net investment income to average net
    assets:
      Before expense waiver....................      0.73%         --         --         --         --
      After expense waiver.....................      0.75%       0.84%      1.30%      1.41%      1.03%
  Portfolio turnover...........................     33.06%      30.74%     32.95%     31.84%     49.12%
</TABLE>
 
                                                                              22
 
Financial Highlights
<PAGE>   23
 
                             ASSET ALLOCATION FUND
 
<TABLE>
<CAPTION>
                                                                    YEARS ENDED JUNE 30,
                                                      -------------------------------------------------
                                                       1998       1997       1996       1995      1994
                                                      -------    -------    -------    ------    ------
<S>                                                   <C>        <C>        <C>        <C>       <C>
Net asset value, beginning of year..................  $ 14.64    $ 13.39    $ 12.29    $11.08    $11.60
                                                      -------    -------    -------    ------    ------
  INCOME FROM INVESTMENT OPERATIONS
  Net investment income.............................     0.39       0.35       0.37      0.36      0.34
  Net gains or losses on securities (both realized
    and unrealized).................................     1.22       2.11       1.41      1.38     (0.25)
                                                      -------    -------    -------    ------    ------
    Total from investment operations................     1.61       2.46       1.78      1.74      0.09
                                                      -------    -------    -------    ------    ------
  LESS DISTRIBUTIONS
  Dividends from net investment income..............    (0.39)     (0.34)     (0.37)    (0.34)    (0.34)
  Distributions from capital gains..................    (0.66)     (0.87)     (0.31)    (0.18)    (0.27)
  Distributions from return of capital..............       --         --         --     (0.01)       --
                                                      -------    -------    -------    ------    ------
    Total distributions.............................    (1.05)     (1.21)     (0.68)    (0.53)    (0.61)
                                                      -------    -------    -------    ------    ------
Net asset value, end of year........................  $ 15.20    $ 14.64    $ 13.39    $12.29    $11.08
                                                      =======    =======    =======    ======    ======
TOTAL RETURN........................................    11.41%     19.95%     14.74%    16.29%     0.71%
RATIOS/SUPPLEMENTAL DATA
  Net assets, end of year (in 000's)................  $18,650    $14,272    $10,083    $9,540    $8,653
  Ratio of expenses to average net assets:..........                                        .
      Before expense waiver.........................     1.25%        --         --        --        --
      After expense waiver..........................     1.21%      1.46%      1.44%     1.46%     1.78%
  Ratio of net investment income to average net
    assets:
      Before expense waiver.........................     2.57%        --         --        --        --
      After expense waiver..........................     2.61%      2.57%      2.81%     3.18%     2.98%
  Portfolio turnover................................    20.07%     19.25%     33.77%    21.03%    17.39%
</TABLE>
 
                                                                              23
<PAGE>   24
Financial Highlights
 
                              TAX EXEMPT BOND FUND
 
<TABLE>
<CAPTION>
                                                                  YEARS ENDED JUNE 30,
                                                   ---------------------------------------------------
                                                    1998       1997       1996       1995       1994
                                                   -------    -------    -------    -------    -------
<S>                                                <C>        <C>        <C>        <C>        <C>
Net asset value, beginning of year...............  $  8.70    $  8.41    $  8.36    $  8.19    $  9.11
                                                   -------    -------    -------    -------    -------
  INCOME FROM INVESTMENT OPERATIONS
  Net investment income..........................     0.37       0.36       0.37       0.39       0.39
  Net gains or losses on securities (both
    realized and unrealized).....................     0.27       0.31       0.07       0.20      (0.54)
                                                   -------    -------    -------    -------    -------
    Total from investment operations.............     0.64       0.67       0.44       0.59      (0.15)
                                                   -------    -------    -------    -------    -------
  LESS DISTRIBUTIONS
  Dividends from net investment income...........    (0.37)     (0.36)     (0.37)     (0.39)     (0.39)
  Distributions from capital gains...............    (0.02)     (0.02)     (0.02)     (0.03)     (0.38)
                                                   -------    -------    -------    -------    -------
    Total distributions..........................    (0.39)     (0.38)     (0.39)     (0.42)     (0.77)
                                                   -------    -------    -------    -------    -------
Net asset value, end of year.....................  $  8.95    $  8.70    $  8.41    $  8.36    $  8.19
                                                   =======    =======    =======    =======    =======
TOTAL RETURN.....................................     7.45%      8.15%      5.30%      7.51%     (1.86)%
RATIOS/SUPPLEMENTAL DATA
  Net assets, end of year (in 000's).............  $17,669    $18,008    $17,744    $18,833    $19,095
  Ratio of expenses to average net assets:
      Before expense waiver......................     1.01%        --         --         --         --
      After expense waiver.......................     0.97%      1.14%      1.08%      1.06%      1.15%
  Ratio of net investment income to average net
    assets:
      Before expense waiver......................     4.13%        --         --         --         --
      After expense waiver.......................     4.17%      4.23%      4.30%      4.79%      4.47%
  Portfolio turnover.............................    24.83%     11.35%     14.75%     24.89%     41.94%
</TABLE>
 
                                                                              24
 
<PAGE>   25
 
                               MONEY MARKET FUND
 
<TABLE>
<CAPTION>
                                                                   YEARS ENDED JUNE 30,
                                                    ---------------------------------------------------
                                                     1998       1997       1996       1995       1994
                                                    -------    -------    -------    -------    -------
<S>                                                 <C>        <C>        <C>        <C>        <C>
Net asset value, beginning of year................  $  1.00    $  1.00    $  1.00    $  1.00    $  1.00
                                                    -------    -------    -------    -------    -------
  INCOME FROM INVESTMENT OPERATIONS
  Net investment income...........................     0.05       0.05       0.05       0.05       0.03
                                                    -------    -------    -------    -------    -------
    Total from investment operations..............     0.05       0.05       0.05       0.05       0.03
                                                    -------    -------    -------    -------    -------
  LESS DISTRIBUTIONS
  Dividends from net investment income............    (0.05)     (0.05)     (0.05)     (0.05)     (0.03)
                                                    -------    -------    -------    -------    -------
    Total distributions...........................    (0.05)     (0.05)     (0.05)     (0.05)     (0.03)
                                                    -------    -------    -------    -------    -------
Net asset value, end of year......................  $  1.00    $  1.00    $  1.00    $  1.00    $  1.00
                                                    =======    =======    =======    =======    =======
TOTAL RETURN......................................     4.94%      4.63%      4.82%      4.85%      2.86%
RATIOS/SUPPLEMENTAL DATA
  Net assets, end of year (in 000's)..............  $53,022    $60,674    $33,664    $36,415    $38,699
  Ratio of expenses to average net assets:
      Before expense waiver.......................     0.83%        --         --       0.97%      1.06%
      After expense waiver........................     0.81%      0.94%      0.90%      0.73%      0.56%
  Ratio of net investment income to average net
    assets:
      Before expense waiver.......................     4.81%        --         --       4.56%      2.33%
      After expense waiver........................     4.83%      4.55%      4.74%      4.80%      2.83%
</TABLE>
 
                                                                              25
<PAGE>   26
Financial Highlights
 
<TABLE>
<CAPTION>
                                                                 SHORT-TERM GOVERNMENT                 LONG-TERM
                                                                       BOND FUND                       BOND FUND
                                                             -----------------------------   -----------------------------
                                                                           FOR THE PERIOD                  FOR THE PERIOD
                                                                YEAR          1/02/97*          YEAR          1/02/97*
                                                               ENDED          THROUGH          ENDED          THROUGH
                                                              6/30/98         6/30/97         6/30/98         6/30/97
                                                             ----------   ----------------   ----------   ----------------
<S>                                                          <C>          <C>                <C>          <C>
Net asset value, beginning of period.......................   $ 10.01         $ 10.00         $ 10.04         $ 10.00
                                                              -------         -------         -------         -------
  INCOME FROM INVESTMENT OPERATIONS
  Net investment income....................................      0.54            0.20            0.56            0.20
  Net gains on securities (both realized and unrealized)...      0.10            0.01            0.45            0.04
                                                              -------         -------         -------         -------
    Total from investment operations.......................      0.64            0.21            1.01            0.24
                                                              -------         -------         -------         -------
  LESS DISTRIBUTIONS
  Dividends from net investment income.....................     (0.54)          (0.20)          (0.56)          (0.20)
  Distributions from capital gains.........................        --              --           (0.01)             --
                                                              -------         -------         -------         -------
    Total distributions....................................     (0.54)          (0.20)          (0.57)          (0.20)
                                                              -------         -------         -------         -------
Net asset value, end of period.............................   $ 10.11         $ 10.01         $ 10.48         $ 10.04
                                                              =======         =======         =======         =======
TOTAL RETURN...............................................      6.50%           2.10%          10.24%           2.44%
RATIOS/SUPPLEMENTAL DATA
  Net assets, end of period (in 000's).....................   $28,309         $24,285         $38,800         $32,932
  Ratio of expenses to average net assets:
      Before expense waiver and reimbursement..............      0.92%           3.88%**         1.12%           3.82%**
      After expense waiver and reimbursement...............      0.86%           0.76%**         0.89%           0.78%**
  Ratio of net investment income to average net assets:
      Before expense waiver and reimbursement..............      5.30%           1.78%**         5.24%           2.11%**
      After expense waiver and reimbursement...............      5.36%           4.90%**         5.47%           5.15%**
  Portfolio turnover.......................................      1.54%           0.00%          25.11%          41.77%
</TABLE>
 
- ---------------
 
 * Commencement of operations.
 
** Annualized
 
                                                                              26
 
<PAGE>   27
                             IAA TRUST MUTUAL FUNDS
                             INVESTMENT APPLICATION

                                 (PLEASE PRINT)

<TABLE>
<CAPTION>

- -----------------------------------------------------------------------------------------------------------------------------------
[Picture of Calculator]

<S>                      <C>                                         <C>                                 <C>  
TOTAL AMOUNT INVESTED    $             (MINIMUM INITIAL INVESTMENT - $1,000)   (RETIREMENT A/C MINIMUM - $100)
                          ===========                                                          
      ALLOCATIONS:
                  $           IN THE GROWTH FUND              $           IN THE MONEY MARKET FUND
                   ----------                                  ----------
                  $           IN THE ASSET ALLOCATION FUND    $           IN THE SHORT-TERM GOVERNMENT BOND FUND
                   ----------                                  ----------
                  $           IN THE TAX EXEMPT BOND FUND     $           IN THE LONG-TERM BOND FUND
                   ----------                                  ----------

      FORM OF PAYMENT:         [ ] BY CHECK(S)                   [ ] BY WIRE
                                   
      TYPE OF PURCHASE:    [ ] DIRECT - NAV            OR                 [ ] THROUGH BROKER-DEALER
                               FARM BUREAU MEMBER MEMBERSHIP #                  MY DEALER PURCHASED           SHARES OF
                           ---                                 ------------                         ---------
                               CUSTOMER OF IAA TRUST COMPANY                    THE                   FUND
                           ---                                                      -----------------
                               EMPLOYEE OF IAA OR AFFILIATE                     ON                  , 199 .
                           ---                                                      ---------------

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

[Picture of File]

TYPE OF REGISTRATION
     [ ] SINGLE/INDIVIDUAL             [ ] JOINT (WITH RIGHTS OF SURVIVORSHIP UNLESS OTHERWISE NOTED)

     -----------------------------  ----------------       --------------------------------   ------------------
     (FIRST NAME)                   (MIDDLE INITIAL)       (LAST NAME)                        (SOCIAL SECURITY #)

     -----------------------------  ----------------       --------------------------------   ------------------
     (FIRST NAME)                   (MIDDLE INITIAL)       (LAST NAME)                        (SOCIAL SECURITY #)

     [ ] GIFT TO MINORS

     -----------------------------------    -----------------------------------               ------------------
     (NAME OF CUSTODIAN - ONE NAME ONLY)    (AS CUSTODIAN FOR - ONE NAME ONLY)                (MINOR'S SOCIAL SECURITY #)

     UNDER THE                           (STATE'S) UNIFORM GIFT TO MINORS ACT
               -------------------------

     [ ] CORPORATIONS, PARTNERSHIPS, TRUSTS & OTHERS  (COMPLETE CORPORATE RESOLUTIONS)

     ------------------------------------------------    --------------             ---------------------     --------------
     (NAME OF CORPORATION, PARTNERSHIP, TRUST, OTHER)    (TAX I.D. #)               NAME OF TRUSTEE(S)        (DATE OF TRUST)

- -----------------------------------------------------------------------------------------------------------------------------------
[Picture of Mailbox]

MAILING ADDRESS OF RECORD & TELEPHONE NUMBER(S)

       ----------------------------------------               ----------------------------         -------    --------------
       (STREET ADDRESS AND APT. NUMBER)                       (CITY)                               (STATE)    (ZIP)

      (        ) ---------------------     (         ) ---------------------
                 (RESIDENCE PHONE)                     (BUSINESS PHONE)
- -----------------------------------------------------------------------------------------------------------------------------------
[Picture of Money]

DISTRIBUTION OPTIONS       (UNLESS INDICATED OTHERWISE, ALL DISTRIBUTIONS WILL BE REINVESTED)
          [ ] AUTOMATIC COMPOUNDING             [ ] CASH DIVIDENDS                          [ ] ALL CASH
              -DIVIDENDS & CAPITAL GAINS            -DIVIDENDS IN CASH,                         -DIVIDENDS AND CAPITAL GAINS
               IN ADDITIONAL SHARES                  CAPITAL GAINS IN ADDITIONAL SHARES          IN CASH
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   28

<TABLE>

<S>                                                           <C>                                         <C>
[Picture of Telephone]


TELEPHONE EXCHANGE & REDEMPTION OPTION
           (NOTE - THIS OPTION WILL BE ASSIGNED TO YOUR ACCOUNT UNLESS YOU ELECT OTHERWISE BELOW!)

         [ ] CHECK HERE IF YOU DO NOT WANT THIS OPTION MADE AVAILABLE.

         [ ] I/WE AUTHORIZE FDISG TO HONOR TELEPHONE REDEMPTIONS (TO MY/OUR BANK) AND/OR EXCHANGES (BETWEEN MY/ OUR FUNDS) WITH 
             IDENTICAL REGISTRATIONS.  NEITHER THE  FUND(S) NOR FDISG WILL BE LIABLE FOR PROPERLY ACTING UPON TELEPHONE 
             INSTRUCTIONS BELIEVED TO BE GENUINE.

         -----------------------------------------------      ------------------------------------        ----------------
         (NAME OF BANK)                                       (CITY)                                      (STATE)

         -----------------------------------------------      ----------------------------------------------------------------------
         (ACCOUNT #)                                          (BANK WIRE ROUTING # - 9 DIGITS)            [ ] CHECKING A/C

                                                                                                          [ ] SAVINGS A/C
                                        [Check Mark] PLEASE REMEMBER ATTACH A VOIDED CHECK!
- ------------------------------------------------------------------------------------------------------------------------------------
[PICTURE]

REDEMPTIONS BY CHECK - AVAILABLE FOR THE MONEY MARKET FUND ONLY

         [ ] CHECK HERE IF YOU WOULD LIKE TO RECEIVE A SUPPLY OF CHECKS TO WRITE REDEMPTIONS OUT OF YOUR ACCOUNT.

- ------------------------------------------------------------------------------------------------------------------------------------
[Left Arrow and Picture of Computer]

SYSTEMATIC WITHDRAWAL PLAN (MINIMUM ACCOUNT BALANCE - $5,000)

A CHECK WILL BE SENT EACH [ ] MONTH OR [ ] QUARTER IN THE AMOUNT OF $       TO YOUR ADDRESS UNLESS OTHERWISE NOTED.
                                                                     -------
                                                                     (MINIMUM $25)
- ------------------------------------------------------------------------------------------------------------------------------------
[Right Arrow and Picture of Computer]

SYSTEMATIC INVESTMENT PLAN
        (NOTE - YOUR BANK MUST BE ABLE TO ACCEPT ACH TRANSACTIONS AND/OR BE A MEMBER OF AN ACH ASSOCIATION FOR YOU TO USE THIS 
SERVICE.)

      PLEASE INVEST:    $           ON THE [ ] 10TH [ ] 15TH  OR [ ] 20TH OF EACH MONTH IN SHARES AS FOLLOWS:
                         ----------
                        ($100 OR MORE)

                  $           IN THE GROWTH FUND              $           IN THE MONEY MARKET FUND
                   ----------                                  ----------
                  $           IN THE ASSET ALLOCATION FUND    $           IN THE SHORT-TERM GOVERNMENT BOND FUND
                   ----------                                  ----------
                  $           IN THE TAX EXEMPT BOND FUND     $           IN THE LONG-TERM BOND FUND
                   ----------                                  ----------

CHECK ONE:        [ ] I AM IN THE PROCESS OF ESTABLISHING AN ACCOUNT            [ ] MY ACCOUNT # IS       
                                                                                                    -------------

         ---------------------------------- -------------------------------     --------------------------------------------
         (NAME OF BANK)                     (ACCOUNT NUMBER)                    (BRANCH LOCATION)

         ---------------------------------- ------------------                  ------------
         (CITY)                             (STATE)                             (ZIP)


AUTHORIZATION TO FIRST DATA INVESTOR SERVICES GROUP, INC.: 
"I/WE UNDERSTAND THAT MY/OUR ACH DEBIT WILL BE DATED ON THE DAY OF EACH MONTH AS INDICATED ABOVE. I/WE AGREE THAT IF SUCH
DEBIT IS NOT HONORED UPON PRESENTATION, FIRST DATA INVESTOR SERVICES GROUP, INC. ("FDISG") MAY DISCONTINUE THIS SERVICE AND
ANY SHARE PURCHASE MADE UPON DEPOSIT OF SUCH DEBIT MAY BE CANCELED. I/WE FURTHER AGREE THAT IF THE NET ASSET VALUE OF THE
SHARES PURCHASED WITH SUCH DEBIT IS LESS WHEN SAID PURCHASE IS CANCELLED THAN WHEN THE PURCHASE WAS MADE, FDISG SHALL BE
AUTHORIZED TO LIQUIDATE OTHER SHARES OR FRACTIONS THEREOF HELD IN MY/OUR ACCOUNT TO MAKE UP THE DEFICIENCY. THIS PLAN MAY BE
DISCONTINUED BY FDISG UPON 30 DAYS WRITTEN NOTICE OR AT ANY TIME BY ME/US BY WRITTEN NOTICE TO FDISG THAT IS RECEIVED NO
LATER THAN FIVE (5) BUSINESS DAYS PRIOR TO THE INVESTMENT DATE DESIGNATED ABOVE."

AUTHORIZATION TO BANK:
"AS A CONVENIENCE TO ME/US, PLEASE HONOR ACH DEBITS ON MY/OUR ACCOUNT DRAWN BY FDISG AND PAYABLE TO THE FUND(S) DESIGNATED
ABOVE. I/WE AGREE THAT YOUR RIGHTS WITH RESPECT TO EACH DEBIT SHALL BE THE SAME AS IF IT WERE A CHECK DRAWN UPON YOU AND
SIGNED PERSONALLY BY ME/US. THIS AUTHORITY SHALL REMAIN IN EFFECT UNTIL YOU RECEIVE WRITTEN NOTICE FROM ME/US CHANGING ITS
TERMS OR REVOKING IT, AND UNTIL YOU ACTUALLY RECEIVE SUCH NOTICE,
</TABLE>

<PAGE>   29
<TABLE>

<S>                                                                                              <C> 
I/WE AGREE THAT YOU SHALL BE FULLY PROTECTED IN HONORING ANY SUCH DEBIT. I/WE FURTHER AGREE THAT IF ANY DEBIT SHALL BE
DISHONORED, WHETHER WITH OR WITHOUT CAUSE OR WHETHER INTENTIONALLY OR INADVERTENTLY, YOU SHALL BE UNDER NO LIABILITY
WHATSOEVER."

TO THE BANK NAMED ABOVE:
"SO THAT YOU MAY COMPLY WITH YOUR DEPOSITOR'S REQUEST AND AUTHORIZATION, IAA TRUST MUTUAL FUNDS AGREE AS FOLLOWS: (1) TO
INDEMNIFY AND HOLD YOU HARMLESS FROM ANY LOSS YOU MAY SUFFER ARISING OR IN CONNECTION WITH A PAYMENT BY YOU, OF A DEBIT DRAWN
BY FDISG TO THE ORDER OF SUCH FUND(S) DESIGNATED ON THE ACCOUNT OF YOUR DEPOSITOR(S) EXECUTING THE AUTHORIZATION INCLUDING
ANY COSTS OR EXPENSES REASONABLY INCURRED IN CONNECTION WITH SUCH LOSS. SUCH FUND(S) WILL NOT, HOWEVER, INDEMNIFY YOU AGAINST
ANY LOSS DUE TO YOUR PAYMENT OF ANY DEBIT GENERATED AGAINST INSUFFICIENT FUNDS; AND (2) TO REFUND TO YOU ANY AMOUNT
ERRONEOUSLY PAID BY YOU TO FDISG ON ANY SUCH DEBIT IF CLAIM FOR THE AMOUNT OF SUCH ERRONEOUS PAYMENT IS MADE BY YOU WITHIN
THREE (3) MONTHS OF THE DATE OF SUCH DEBIT ON WHICH ERRONEOUS PAYMENT WAS MADE."

                                      [Check Mark] PLEASE REMEMBER TO ATTACH A VOIDED CHECK!
- ------------------------------------------------------------------------------------------------------------------------------------
[Picture of Feather & Inkwell]

 SIGNATURE & CERTIFICATION - INCLUDING BACK-UP WITHHOLDING CERTIFICATION UNDER
         THE PENALTIES OF PERJURY, I/WE CERTIFY THE FOLLOWING:
         1. I/WE CERTIFY THAT THE NUMBER SHOWN ON THIS FORM IS MY/OUR CORRECT TAX IDENTIFICATION NUMBER. 
         2. I/WE AM NOT/ARE NOT SUBJECT TO BACKUP WITHHOLDING AS A RESULT OF FAILURE TO REPORT ALL INTEREST AND
            DIVIDENDS, OR THE INTERNAL  REVENUE SERVICE HAS NOTIFIED ME/US THAT I/WE AM/ARE NO LONGER SUBJECT TO
            BACKUP WITHHOLDING.


         CITIZEN OF:       [ ] UNITED STATES  [ ] OTHER (PLEASE INDICATE) 
                                                                          -----------------------

"THE INTERNAL REVENUE SERVICE DOES NOT REQUIRE YOUR CONSENT TO ANY PROVISION OF THIS DOCUMENT OTHER THAN THE CERTIFICATION 
REQUIRED TO AVOID BACKUP WITHHOLDING."


         ---------------------------------------------------------------------------             ------------------------------
         SIGNATURE         [ ] OWNER          [ ] CUSTODIAN        [ ] TRUSTEE                            DATE

         ---------------------------------------------------------------------------             -------------------------------
                  SIGNATURE OF JOINT OWNER (IF APPLICABLE)                                                DATE

         [ ] CHECK BOX IF YOU HAVE BEEN NOTIFIED BY THE IRS THAT YOU ARE SUBJECT TO BACKUP WITHHOLDING.

- ------------------------------------------------------------------------------------------------------------------------------------
[Picture of Shaking Hands]

INVESTMENT DEALER INFORMATION

         -------------------------------------------------------------------------------------------------
         FIRM NAME                  REP. NAME & NUMBER                 AUTHORIZED SIGNATURE

         -------------------------------------------------------------------------------------------------
         STREET ADDRESS             CITY                               STATE                     ZIP

- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   30
 
[PHOTO] Fund Information

Concise fund-by-fund descriptions are provided on the following pages. Each
description provides the specific fund goals, strategies, risks, suitability and
performance. Before investing, make sure that the fund's goal matches your own.
The funds cannot be certain that they will achieve their goals. Please keep this
prospectus with your investment records.


Table of Contents

FEES AND EXPENSES OF THE FUNDS
   Shareholder Fees .........................................................  2
   Annual Fund Operating Expenses ...........................................  2
   Example ..................................................................  3
A DESCRIPTION OF EACH FUND
Goals, Strategies, Risk, Suitability and Performance
   Growth Fund ..............................................................  4
   Asset Allocation Fund ....................................................  6
   Tax Exempt Bond Fund .....................................................  8
   Money Market Fund ........................................................ 10
   Short-Term Government Bond Fund .......................................... 12
   Long-Term Bond Fund ...................................................... 14
MANAGEMENT OF THE FUNDS ..................................................... 16
   The IAA Trust Company, chartered in 1970, is a wholly-owned affiliate of
   the Illinois Agricultural Association, a membership organization over a
   quarter million strong.
DISTRIBUTION ARRANGEMENTS ................................................... 16
YOUR INVESTMENT ............................................................. 16
   Buying Shares ............................................................ 16
   Selling Shares ........................................................... 18
   Transaction Policies ..................................................... 19
DISTRIBUTIONS AND TAXES ..................................................... 19
OTHER SECURITIES AND RISKS .................................................. 20
FINANCIAL HIGHLIGHTS ........................................................ 22

<PAGE>   31




[COVER PAGE]


STATEMENT OF ADDITIONAL INFORMATION


October 28, 1998




         IAA Trust Growth Fund, Inc.

         IAA Trust Asset Allocation Fund, Inc.

         IAA Trust Tax Exempt Bond Fund, Inc.

         IAA Trust Taxable Fixed Income Series Fund, Inc.

                  IAA Trust Money Market Fund

                  IAA Trust Short-Term Government Bond Fund

                  IAA Trust Long-Term Bond Fund



808 IAA Drive
Bloomington, IL  61702
(309) 557-3222







This Statement of Additional Information is not a prospectus. It should be read
in conjunction with the funds' Prospectus dated October 28, 1998, and is
incorporated by reference in its entirety into the Prospectus. The Statement of
Additional Information may be obtained without charge from a licensed
salesperson at IAA Trust Company, 808 IAA Drive, Bloomington, IL 61702, or by
contacting the funds' principal underwriter, FPS Broker Services, Inc., 3200
Horizon Drive, P.O. Box 61503, King of Prussia, PA 19406-0903, (800-245-2100)
The Funds' most recent Annual Report and Semi-Annual Report to Shareholders are
separate documents that are incorporated by reference in this Statement of
Additional Information.


<PAGE>   32


                                    CONTENTS


                                                                        PAGE

History of the Funds........................................................ 3

Description of Investments and Risks........................................ 3

Investment Restrictions..................................................... 6

Portfolio Turnover ......................................................... 8

Management of the Funds..................................................... 8

Control Persons and Principal Holders of Securities........................ 11

Investment Advisory and Other Services......................................12

Other Service Providers.....................................................14

Brokerage...................................................................15

Capital Stock...............................................................18

Purchases, Redemptions and Pricing of Shares................................18

Taxation of the Funds.......................................................21

Underwriter Compensation....................................................21

Calculation of Performance Data.............................................21

Financial Statements........................................................25

Appendix A - Descriptions of Securities Ratings.............................26







                                                                               2
<PAGE>   33



                              HISTORY OF THE FUNDS

This Statement of Additional Information pertains to the following four separate
funds incorporated under the laws of the State of Maryland:

<TABLE>
<CAPTION>

NAME OF FUND                                                                            DATE OF INCORPORATION
- ------------                                                                            ---------------------

<S>                                                                                      <C>     
IAA Trust Growth Fund ("GROWTH FUND")                                                    August 5, 1965 
IAA Trust Asset Allocation Fund ("ASSET ALLOCATION FUND")                                March 20, 1978 
IAA Trust Tax Exempt Bond Fund ("TAX EXEMPT BOND FUND")                                  March 20, 1978 
IAA Trust Taxable Fixed Income Series Fund ("TAXABLE FIXED INCOME SERIES FUND")          April 14, 1981
</TABLE>

In addition, the Taxable Fixed Income Series Fund consists of the following
three separate series or funds described in this Statement of Additional
Information:

                IAA Trust Money Market Fund ("MONEY MARKET FUND")
    IAA Trust Short-Term Government Bond Fund ("SHORT-TERM GOVERNMENT FUND")
              IAA Trust Long-Term Bond Fund ("LONG-TERM BOND FUND")

CLASSIFICATION:
- ---------------

The funds are classified as open-end, management investment companies. The funds
are diversified, which means that, with respect to 75% (100% for the GROWTH FUND
and MONEY MARKET FUND) of its total assets, a fund will not invest more than 5%
of its assets in the securities of any single issuer (other than securities
issued by the U. S. government or its agencies or instrumentalities).


                      DESCRIPTION OF INVESTMENTS AND RISKS

The following section describes credit quality ratings applicable to various
types of investments of the funds. Under normal circumstances, the funds will
not purchase investments below these ratings. However, each fund may purchase
investments which, although not rated, are considered by management to have
investment quality comparable to the applicable minimum rating. In the event a
security held by the fund is downgraded below the minimum rating stated below,
the investment adviser shall promptly reassess the risks involved and take such
actions as it determines are in the best interests of the fund and its
shareholders.

CREDIT QUALITY:
Growth Fund: When investing in fixed income securities, the Growth Fund's
management intends to invest in those securities which are rated at the time of
purchase within the four highest grades assigned by Moody's Investors Service,
Inc. ("Moody's")(Aaa, Aa, A, or Baa) or Standard & Poor's ("S&P")(AAA, AA, A, or
BBB).

Asset Allocation Fund: The fund may invest in commercial paper rated in the top
two grades - "Prime-1" or "Prime-2" by Moody's or "A-1" or "A-2" by S&P;
non-convertible corporate debt securities such as bonds, notes and debentures
which are rated in the top two grades - "Aaa" or "Aa" by Moody's or "AAA" or
"AA" by S&P. The fixed income securities in which the fund may invest are rated
at the time of purchase within the four highest grades assigned by Moody's (Aaa,
Aa, A, or Baa) or S&P (AAA, AA, A, or BBB).

Tax Exempt Bond Fund: The fund's investments in municipal bonds will be those
which are rated at the time of purchase within the four highest grades assigned
by Moody's (Aaa, Aa, A, or Baa) or S&P (AAA, AA, A, or BBB). Temporary
investments made by the fund may consist of: (1) notes issued by or on behalf of
municipal issuers backed by the Federal Government; (2) notes of issuers having,
at the time of purchase, an outstanding issue of municipal bonds rated within
the four highest grades of Moody's or S&P; (3) municipal notes rated at the time
of purchase within the two highest grades assigned by Moody's (MIG-1 and MIG-2);
(4) obligations of the U.S. government, its agencies or instrumentalities; (5)
bonds, notes and certificates rated within the four highest grades of Moody's or
S&P; (6) commercial paper rated within the two highest grades assigned by
Moody's (P-1 or P-2) or by S&P (A-1 or A-2); and (7) debt securities (including
repurchase agreements) issued or guaranteed by domestic 

                                                                               3
<PAGE>   34

banks having investment quality, in management's opinion, comparable to debt
securities of the type described in category (5) above.

Money Market Fund: The certificates of deposit in which the fund may invest will
be of domestic banks in amounts (currently $100,000) that are fully insured by
the Federal Deposit Insurance Corporation (the "FDIC") and, for larger amounts,
bank certificates of deposit or bankers acceptances of domestic banks having
total assets in excess of $1 billion and which are members of the FDIC. The fund
may purchase negotiable certificates of deposit. Banks are subject to
extensive but different government regulations which may limit the amount and
types of their loans and the interest rates that may be charged. In addition,
the profitability of the banking industry is largely dependent upon the
availability and cost of funds to finance lending operations and the quality of
underlying bank assets. Commercial paper purchased by the fund will be rated in
the top grade by two nationally recognized statistical rating organizations
(NRSROs) one of which must be either Moody's Inc., or S&P. The fund may also
purchase negotiable certificates of deposit of savings and loan associations in
amounts (currently $100,000) that are fully insured by the FDIC.

Short-Term Government Bond Fund: The fund may invest up to 35% of its total
assets in cash, commercial paper and high-grade liquid debt securities,
including corporate debt instruments and privately issued mortgage-related and
asset-backed securities within the three highest grades assigned by S&P (AAA,
AA, A) or Moody's (Aaa, Aa, A ).

Long-Term Bond Fund: At least 80% of the fund's assets will consist of
obligations of corporations which, at the time of purchase by the fund are rated
at least "A-" by S&P or "A3" by Moody's, and of securities issued or guaranteed
as to principal and interest by the U.S. government or its agencies or
instrumentalities. Up to 20% of the fund's net assets may consist of commercial
paper of U.S. issuers rated "A-1" or "A-2" by S&P or "P-1" or "P-2" by Moody's,
certificates of deposit, time deposits and bankers' acceptances, and corporate
bonds which are rated in any category lower than "A-" by S&P and "A3" by
Moody's. When deemed necessary for temporary defensive purposes, the fund's
investment in commercial paper, certificates of deposit, time deposits and
bankers' acceptances may exceed 20% of its net assets, although the fund
currently does not intend to invest more than 5% of its assets in any one of
these types of instruments. Commercial paper and certificates of deposit could
be over 5%. Under no circumstances will the fund invest more than 20% of its net
assets in corporate bonds which are rated lower than "A-" by S&P and "A3" by
Moody's or are unrated. Obligations rated "BBB" by S&P and "Baa" by Moody's are
considered investment grade obligations which lack outstanding investment
characteristics and may have speculative characteristics as well.

DESCRIPTION OF INVESTMENTS
- --------------------------
Shareowners should understand that all investments involve risk and there can be
no guarantee against loss resulting from an investment in the funds. Unless
otherwise indicated, all percentage limitations governing the investments of the
funds apply only at the time of transaction. Under normal circumstances, only
the funds indicated will invest in each type of security.

FIXED-INCOME SECURITIES:
ALL FUNDS may invest in fixed-income securities. Even though interest-bearing
securities are investments which promise a stable stream of income, the prices
of such securities are affected by changes in interest rates. In general, bond
prices rise when interest rates fall and fall when interest rates rise. The
values of fixed-income securities also may be affected by changes in the credit
rating or financial condition of the issuing entities. Once the rating of a
portfolio security has been changed, the fund will consider all circumstances
deemed relevant in determining whether to continue to hold the security.

FOREIGN SECURITIES:
Since the MONEY MARKET FUND, the GROWTH FUND (up to 10%), the LONG-TERM BOND
FUND (up to 10%) and the ASSET ALLOCATION FUND (up to 5%) may invest in
securities of foreign issuers, these funds may be subject to investment risks
that are greater in some respects than those incurred by a portfolio which
invests only in securities of U.S. domestic issuers. Such risks include future
political and economic developments, the possible imposition of foreign
withholding taxes on interest income payable on the securities, the possible
establishment of exchange 

                                                                               4
<PAGE>   35

controls, the possible seizure or nationalization of foreign deposits, or the
adoption of other foreign governmental restrictions which might adversely affect
the payment of principal and interest on such securities.

FORWARD COMMITMENTS AND WHEN-ISSUED SECURITIES:
The LONG-TERM BOND FUND and ASSET ALLOCATION FUND may purchase securities on a
forward commitment or when-issued basis, which means that the price is fixed at
the time of commitment, but delivery and payment ordinarily take place a number
of days after the commitment to purchase. The funds will make commitments to
purchase such securities only with the intention of actually acquiring the
securities, but the fund may sell these securities before the settlement date if
it is deemed advisable. The funds will not accrue income in respect of a forward
commitment or when-issued security prior to its stated delivery date.

Securities purchased on a forward commitment or when-issued basis and the
securities held in the LONG-TERM BOND FUND portfolio are subject to changes in
value (both generally changing in the same way, i.e., appreciating when interest
rates decline and depreciating when interest rates rise) based upon the public?s
perception of the creditworthiness of the issuer and changes, real or
anticipated, in the level of interest rates. Securities purchased on a forward
commitment or when-issued basis may expose the fund to risk because they may
experience such fluctuations prior to their actual delivery. Purchasing
securities on a forward commitment or when-issued basis can involve the
additional risk that the yield available in the market when the delivery takes
place actually may be higher than that obtained in the transaction itself. A
segregated account of the fund, consisting of cash, cash equivalents or U.S.
Government securities or other high quality liquid debt securities at least
equal at all times to the amount of the forward commitment or when-issued
securities, will be established and maintained at the fund's custodian bank.
Purchasing securities on a forward commitment or when-issued basis when the fund
is fully or almost fully invested may result in greater potential fluctuation in
the value of the fund's net assets and its net asset value per share.

GOVERNMENT SECURITIES:
ALL FUNDS may invest in certain securities issued or guaranteed by the U.S.
government or its agencies or instrumentalities which includes U.S. Treasury
securities, which differ in their interest rates, maturities and times of
issuance. Treasury bills have a maturity of one year or less. Treasury notes
have a maturity of one to ten years and Treasury bonds generally have maturities
of greater than ten years at the date of issuance. Some obligations issued or
guaranteed by U.S. government agencies and instrumentalities, such as Government
National Mortgage Association pass-through certificates, are supported by the
full faith and credit of the U.S. Treasury. Other obligations such as those of
the Federal Home Loan Bank, are supported only by the credit of the
instrumentalities. Government securities may have fixed, floating or variable
rates of interest. Principal and interest may fluctuate based on generally
recognized reference rates or the relationship of rates. No assurance can be
given that the U.S. government would provide financial support to U.S.
government instrumentalities as it is not obligated to do so by law. The fund
will invest in such securities only when it is satisfied that the credit risk
with respect to the issuer is minimal.

MORTGAGE-RELATED SECURITIES:
The SHORT-TERM GOVERNMENT BOND FUND and LONG-TERM BOND FUND may invest in
mortgage-related securities which are collateralized by pools of mortgage loans
assembled for sale to investors by various governmental agencies, such as
Government National Mortgage Association and government-related organizations
such as Federal National Mortgage Association and Federal Home Loan Mortgage
Corporation, as well as by private issuers such as commercial banks, savings and
loan institutions, mortgage banks and private mortgage insurance companies, and
similar foreign entities. Mortgage-related securities are a form of derivative
securities. The mortgage-related securities in which the fund may invest include
those with fixed, floating and variable interest rates and those with interest
rates that change based on multiples of changes in interest rates. Although
certain mortgage-related securities are guaranteed by a third party or otherwise
similarly secured, the market value of the security, which may fluctuate, is not
so secured. If a mortgage-related security is purchased at a premium, all or
part of the premium may be lost if there is a decline in the market value of the
security, whether resulting from changes in interest rates or prepayments in the
underlying mortgage collateral. As with other interest-bearing securities, the
prices of certain mortgage-backed securities are inversely affected by changes
in interest rates. However, although the value of a mortgage-related security
may decline when interest rates rise, the converse is not necessarily true,
since in periods of declining interest rates the mortgage underlying the
security are more likely to be prepaid. For this and other reasons, a
mortgage-related security's stated maturity may be shortened by unscheduled
prepayments on the


                                                                               5
<PAGE>   36

underlying mortgage and, therefore, it is not possible to predict accurately the
security's return to the fund. The fund also may invest in collateralized
mortgage obligations structures on pools of mortgage pass-through certificates
or mortgage loans. The issuers of collateralized mortgage obligations typically
do not have assets other than those pledged to secure separately the
obligations. Holders of these obligations must rely principally on distributions
on the underlying mortgage-related securities and other collateral securing the
obligations for payments of principal and interest on the obligations. If the
collateral securing the obligations is insufficient to make payments on the
obligations, a holder could sustain a loss. Collateralized mortgage obligations
will be purchased only if rated in one of the two highest rating categories by
an NRSRO such as Moody's or S&P.

MUNICIPAL BONDS:
The TAX EXEMPT BOND FUND may purchase municipal bonds which are generally debt
obligations issued by states, territories and possessions of the United States
and the District of Columbia and their political subdivisions, agencies and
instrumentalities. They are issued to obtain funds for various public purposes,
including the construction of a wide range of public facilities such as:
airports, bridges, highways, hospitals, housing, mass transportation, schools,
streets, and water and sewer works. Other public purposes for which municipal
bonds may be issued include obtaining funds for general operating expenses and
obtaining funds to lend to other public institutions and facilities. In
addition, certain types of industrial development bonds are issued by or on
behalf of public authorities to obtain funds to provide: privately-operated
housing facilities, airports, mass transit, industrial port or parking
facilities, air or water pollution control facilities and certain facilities for
water supply, gas, electricity or sewage or solid waste disposal. Other types of
facilities and certain industrial development bonds, the proceeds of which are
used for the acquisition, construction, reconstruction or improvement of or to
provide equipment for privately-operated industrial or commercial facilities,
may qualify as municipal bonds, although current Federal tax laws place
substantial limitations on the size of such funds. Moreover, when an industrial
development bond is backed only by the assets and revenue of the
non-governmental user, then such non-governmental user is deemed to be the
issuer.

The two principal classifications of municipal bonds are "general obligation
bonds" and "revenue bonds". General obligation bonds are secured by the issuer's
pledge of its faith, credit and taxing power for the payment of principal and
interest. The taxes or special assessments that can be levied for the payment of
debt service may be limited or unlimited as to rate or amount. Revenue bonds are
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
specific revenue source, but not from the general taxing power. Tax exempt
industrial development bonds are in most cases revenue bonds and do not
generally carry the pledge of the credit of the insurer of such bonds. There are
variations in the security of municipal bonds, both within a particular
classification and between classifications. The fund's portfolio may consist of
any combination of general obligation bonds, revenue bonds, and industrial
revenue bonds, and it can be expected that the ratios of such bonds will vary
from time to time.

Yields on municipal bonds are dependent on, among other things, general money
market conditions, conditions of the municipal bond market, size of a particular
offering, maturity of the obligation, the financial condition of the issuer, and
the rating of the issue. Additionally, the imposition of the fund's management
fee, as well as other operating expenses, will have the effect of reducing the
yield to investors. Proposals have been introduced periodically before Congress
to restrict or eliminate the Federal income tax exemption for interest on
municipal bonds. Similar proposals may be introduced in the future. If such a
proposal would be enacted, the availability of municipal bonds for investment by
the fund and the value of the fund's portfolio would be affected. In such event,
the fund would reevaluate its objective and policies and consider recommending
to its shareholders changes in the structure of the fund.

REPURCHASE AGREEMENTS:
ALL FUNDS may enter into repurchase agreements which are transactions in which
the funds purchase a security (usually a U.S. government obligation) and
simultaneously obtain the commitment of the seller to repurchase the security at
an agreed upon price on an agreed upon date, usually not more than seven days
from the date of purchase. The resale price reflects the purchase price plus an
agreed upon market rate of interest which is unrelated to the coupon rate or
maturity of the purchased security. Such transactions afford an opportunity for
a fund to earn a return on cash which is only temporarily available. The fund's
risk is limited to the ability of the seller to pay the agreed upon sum upon the
delivery date, but the seller's obligation is in effect secured by the value of
the underlying

                                                                               6
<PAGE>   37


security. The funds will only invest in repurchase agreements of domestic banks
maturing in seven days or less and will not invest in repurchase agreements of
broker-dealers.

If the seller of a repurchase agreement should default on its obligation to
repurchase the securities, a fund may experience delays or difficulties in
exercising its rights upon the securities held as collateral and might incur a
loss if the value of the securities should decline. A fund also might incur
disposition costs in connection with liquidating the securities. While the funds
acknowledge these risks, it is expected that they can be controlled through
careful monitoring procedures offered by the adviser.

RESTRICTED SECURITIES:
The funds will not make any investment in restricted securities.

SECURITIES OF OTHER INVESTMENT COMPANIES:
ALL FUNDS may purchase or acquire securities of other investment companies
(including, without limitation, unit investment trusts) on the open market if
immediately after such purchase or acquisition the fund would not own, in the
aggregate, (1) more than 3% of the total outstanding voting stock of such other
investment company; (2) securities issued by such other investment company
having an aggregate value in excess of 5% of the value of the fund's total
assets; or (3) securities issued by such other investment company and all other
investment companies having an aggregate value in excess of 10% of the value of
the fund's total assets. By investing in another registered investment company,
there may be a duplication in fees and expenses.

TEMPORARY DEFENSIVE POSITION
During periods of unusual economic or market conditions or for temporary
defensive purposes, each fund may invest in cash or short-term debt securities.
The types of short-term instruments in which each fund may invest for temporary
defensive purposes include: cash, money market securities such as repurchase
agreements, securities issued or guaranteed by the U. S. Government or its
agencies or instrumentalities, prime corporate commercial paper, and bankers'
acceptances and certificates of deposit issued by major banks.

ZERO COUPON SECURITIES:
The LONG-TERM BOND FUND may invest in zero coupon U.S. Government securities,
which are U.S. Government obligations that have been stripped of their unmatured
interest coupons, the coupons themselves and receipts or certificates
representing interests in such stripped debt obligations and coupons. The fund
also may invest in zero coupon securities issued by corporations and financial
institutions and by foreign governments where such securities are denominated in
U.S. dollars. A zero coupon security pays no interest to its holder during its
life and is sold at a discount to its face value at maturity. The amount of the
discount fluctuates with the market price of the security. The market prices of
zero coupon securities generally are more volatile than the market price of
securities that pay interest periodically and are likely to respond to a greater
degree to changes in interest rates than non-zero coupon securities having
similar maturities and credit qualities.


                             INVESTMENT RESTRICTIONS

FUNDAMENTAL INVESTMENT RESTRICTIONS
- -----------------------------------
The following investment restrictions are considered fundamental which means
that they may only be changed by the vote of a majority of a fund's outstanding
shares, which as used herein and in the Prospectus, means the lesser of: (1) 67%
of such fund's outstanding shares present at a meeting, if the holders of more
than 50% of the outstanding shares are present in person or by proxy, or (2)
more than 50% of such fund's outstanding shares.

RESTRICTIONS APPLICABLE TO ALL FUNDS:

- -     No fund will authorize or issue any class of senior securities.

- -     The GROWTH FUND, the ASSET ALLOCATION FUND, the TAX EXEMPT BOND FUND, the
      SHORT-TERM GOVERNMENT BOND FUND and the LONG-TERM BOND FUND each will not
      borrow money, except as a temporary measure for extraordinary or emergency
      purposes. Such borrowings will only be from a bank in an amount not to
      exceed 10% of the value of the fund's total assets, nor 5% of the value of
      such fund's total assets if such debt matures more than sixty days after
      issuance.




                                                                               7
<PAGE>   38

- -    The MONEY MARKET FUND will not borrow money, except as a temporary measure
     for extraordinary or emergency purposes, and then only from a bank in an
     amount not to exceed 10% of the value of the fund's total assets. The MONEY
     MARKET FUND will not purchase securities at any time a loan to such fund is
     outstanding (investments in repurchase agreements are not subject to these
     restrictions).

- -    No fund will underwrite or participate in the underwriting of securities of
     other issuers.

- -    No fund will purchase or sell real estate, commodities, or commodity
     contracts.

- -    No fund will make loans, except through the purchase of publicly
     distributed debt securities in accordance with each fund's investment
     policies. Investments in repurchase agreements shall not be considered a
     loan for purposes of this restriction.

RESTRICTIONS APPLICABLE TO CERTAIN FUNDS:

The GROWTH FUND will not:
  
- -    Invest more than 5% of its assets in the securities of any one issuer.
 
- -    Purchase or hold as much as 10% of any class of outstanding equity
     securities or as much as 10% of the outstanding voting securities of any
     one issuer.

- -    Concentrate the investments of more than 25% of the total value of its
     assets in any single industry.

The  ASSET ALLOCATION FUND, the SHORT-TERM GOVERNMENT BOND FUND and the
     LONG-TERM BOND FUND each will not: 

- -    With respect to 75% of its assets, invest more than 5% of its assets in the
     securities of any one issuer.

- -    Purchase or hold as much as 10% of any class of outstanding equity
     securities or as much as 10% of the outstanding voting securities of any
     one issuer.

- -    Concentrate the investments of more than 25% of the total value of its
     assets in any single industry.

The TAX EXEMPT BOND FUND will not:

- -    With respect to 75% of its assets, invest more than 5% of its assets in the
     securities of any one issuer. The term ?issuer? as used by this fund will
     mean any one state municipality, agency, authority, instrumentality or
     other entity which is directly responsible for the payment of debt service
     on its outstanding obligations.

- -    With respect to non-municipal bond investments, concentrate investments 
     of more than 25% of the total value of its assets in any single
     industry, except that there is no limitation with regard to investments in
     obligations issued or guaranteed by the U.S. Government, its agencies or
     instrumentalities.

The MONEY MARKET FUND will not:

- -    Invest more than 10% of its total assets in repurchase agreements maturing
     in more than seven days or in non-negotiable certificates of deposit.
     [However, as described in "Description of Investments and Risks" above,
     under normal circumstances, the fund will not invest in repurchase
     agreements maturing in more than seven days and will not invest in
     illiquid, restricted securities (including non-negotiable certificates of
     deposit.]

- -    Invest more than 5% of its total assets in the securities of any one
     issuer.

   
- -    Concentrate the investments of more than 25% of the total value of its
     assets in any single industry.
    

NON-FUNDAMENTAL INVESTMENT RESTRICTIONS
The following restrictions are imposed by the management of the funds, and may
be modified by the Board of Directors of the funds without shareholder approval.
Each fund will not:

- -    Invest in companies for purposes of exercising control or management.

- -    Buy from or sell portfolio securities to any of its officers, directors,
     employees, adviser or underwriter as principals except as otherwise
     approved by the Board of Directors and in accordance with Section 17 of the
     Investment Company Act of 1940. 

- -    Purchase securities on margin, effect a short sale of any security,
     purchase or sell puts, calls, straddles or spreads, or participate in any
     joint or joint and several trading accounts.




                                       8
<PAGE>   39

- -    Purchase or retain securities of any company if persons affiliated with
     such fund or its adviser, as a group, beneficially own more than 1% of the
     securities of such a company.

- -    In any case, borrow money in an amount which exceeds 5% of the value of its
     total assets and will not purchase securities at any time a loan to such
     fund is outstanding (investment in repurchase agreements will not be
     considered to be loans for purposes of this restriction).

INVESTMENT COMPANY ACT RESTRICTIONS
- -----------------------------------
The following restrictions are imposed by the Investment Company Act of 1940.
Each fund will not:

- -    Purchase or acquire securities of another investment company except by
     purchase on the open market at regular brokerage rates (other than when
     such purchase or acquisition is part of a plan of merger or consolidation)
     if immediately after such purchase or acquisition, such fund would own in
     the aggregate: (1) more than 3% of the total outstanding voting stock of
     such other investment company; (2) securities issued by such other
     investment company having an aggregate value in excess of 5% of the value
     of such fund's total assets; or (3) securities issued by such other
     investment company and all other investment companies having an aggregate
     value in excess of 10% of the value of such fund's total assets.

Any investment policy or restriction which involves a maximum percentage of
securities or assets shall not be considered to be violated unless an excess
over the percentage occurs immediately after an acquisition of securities and
results therefrom.

                               PORTFOLIO TURNOVER

The table below indicates each fund's portfolio turnover (with the exception of
the MONEY MARKET FUND) for the two most recently completed fiscal years. The
funds do not anticipate significant variations in portfolio turnover for the
fiscal year end June 30, 1999.


<TABLE>
<CAPTION>

FUND NAME                           FISCAL YEAR ENDED 6/30/97 FISCAL YEAR ENDED 6/30/98
- ---------                           ------------------------- -------------------------

<S>                                         <C>                                 <C>   
GROWTH FUND                                 30.74%                              33.06%
ASSET ALLOCATION FUND                       19.25%                              20.07%
TAX EXEMPT BOND FUND                        11.35%                              24.83%
SHORT-TERM GOVERNMENT BOND FUND              00.0%*                            1.54%
LONG-TERM BOND FUND                         41.77%*                             25.11%
<FN>

* For the period beginning January 2, 1997 (commencement of operations) through
June 30, 1997.
</TABLE>

A portfolio turnover of 100% indicates that the equivalent of all of the fund's
assets have been sold and reinvested in a year. The amount of brokerage
commissions will tend to increase as the level of portfolio activity increases.
High portfolio turnover may result in the realization of substantial net capital
gains or losses.


                             MANAGEMENT OF THE FUNDS

THE BOARD OF DIRECTORS
The operations of each fund are under the direction of a Board of Directors who
have been elected by the shareholders of each fund. The Board establishes each
fund's policies and oversees and reviews the management of each fund. The Board
meets regularly to review the activities of the officers, who are responsible
for day-to-day operations of the funds. To assist the directors and officers in
carrying out their duties and responsibilities, the funds have employed IAA
Trust Company as their investment adviser. The Board reviews the various
services provided by the adviser to ensure that each fund's general investment
policies and programs are being carried out and administrative services are
being provided to the funds in a satisfactory manner.



                                                                               9
<PAGE>   40

The directors and executive officers of the funds and their principal
occupations during the past five years are set forth below. An asterisk
indicates a director who may be deemed to be an "interested person" (as that
term is defined in the Investment Company Act of 1940) of the funds. All
directors classified by the funds as "interested directors" also serve as
directors of Illinois Agricultural Association ("IAA"), Illinois Agricultural
Holding Co. ("IAHC"), Country Life Insurance Company ("CLIC"), Country
Mutual Insurance Company ("CMIC") and IAA Trust Company ("IAATC"). IAHC owns
99.9% of the outstanding stock of CLIC and 95% of the outstanding stock of
IAATC. Ronald R. Warfield and Rollie D. Moore also serve as directors of IAATC
and as President and Vice President, respectively, of CLIC, IAATC, IAHC and IAA.
<TABLE>
<CAPTION>

                              POSITIONS HELD
NAME AND AGE                  WITH THE FUNDS          PRINCIPAL OCCUPATION(S) DURING PAST FIVE YEARS
- ------------                  --------------          ----------------------------------------------

<S>                           <C>                     <C>
Ronald R. Warfield * (54)     Director  and           Director and President:  Illinois Agricultural Association,
                              President since 1994    Illinois Agricultural Holding Co., CC Services, Inc. (3),
                                                      Country Capital Management Company, Country Casualty         
                                                      Insurance Company, Country Investors Life Assurance Company, 
                                                      Country Life Insurance Company, Country Mutual Insurance     
                                                      Company, and Country Preferred Insurance Company, 1993 to    
                                                      date; Country Medical Plans, Inc., 1996 to date; Director:   
                                                      AgriVisor Services, Inc. and IAA Trust Company, 1993 to      
                                                      date; Coordinating Committee Member of GROWMARK, Inc. and    
                                                      Chairman, Board of Trustees, IAA Foundation (2), 1993 to     
                                                      date; President: AgriVisor Services, Inc., and IAA Trust     
                                                      Company, 1994 to date; Chairman of the Board: Country        
                                                      Capital Management Company, 1994 to date; Director: American 
                                                      Farm Bureau Federation and certain of its affiliated         
                                                      companies, 1996 to date. Member of the USDA National         
                                                      Agricultural Research, Extension, Education & Economics      
                                                      Advisory Board, 1996 to present. Chairman of the Board, 
                                                      Country Capital Management Company, 1994 to present. 
                                                      Director of Bank of Gibson City, 1989 to 1994. Director, 
                                                      IAA Communications Company, 1993-96; President, IAA 
                                                      Communications Company 1994-96. Farmer.       
                                                      

Herbert G. Allen (68)         Director since 1987     Farmer

Charlot R. Cole (57)          Director since 1996     Property Developer, 1979 to date; Member Macoupin-Greene
                                                      County Cooperation Extension Council (formerly Macoupin
                                                      County Cooperative Extension Council), 1992 to date and
                                                      President, 1995 to date; Secretary/Treasurer, Cole Farms,
                                                      Inc., 1993 to date.  Farmer.

Nancy J. Erickson (41)        Director since 1995     President of McHatton Farm Management, Inc., 1981 to date.
                                                      Farmer.
</TABLE>



                                                                              10
<PAGE>   41

<TABLE>
<CAPTION>

                              POSITIONS HELD
NAME AND AGE                  WITH THE FUNDS          PRINCIPAL OCCUPATION(S) DURING PAST FIVE YEARS
- ------------                  --------------          ----------------------------------------------

<S>                           <C>                     <C>

William E. Klein, Sr.* (70)   Director since 1993     Director:  Illinois Agricultural Association, Illinois
                                                      Agricultural Holding Co., CC Services, Inc.(3), Country
                                                      Casualty Insurance Company, Country Investors Life Assurance
                                                      Company, Country Life Insurance Company, Country Mutual
                                                      Insurance Company, and Country Preferred Insurance Company,
                                                      1988 to date; Director, Country Capital Management Company,
                                                      1992 to date; Director, Country Medical Plans, Inc., 1996 to
                                                      date and IAA Trust Company, 1998 to present.  Farmer.

Ailene Miller (72)            Director since 1991     McLean County (Illinois) Board Member, 1986 to date; Member
                                                      of IAA Foundation Trustee Emeritus, 1988 to date.

Rollie D. Moore * (49)        Director since 1996     Director and Vice President:  Illinois Agricultural
                              and Vice President      Association, Illinois Agricultural Holding Co., CC Services,
                              since 1994              Inc. (3), Country Capital Management Company, Country
                                                      Casualty Insurance Company, Country Investors Life Assurance
                                                      Company, Country Life Insurance Company, Country Mutual                     
                                                      Insurance Company, and Country Preferred Insurance Company,                 
                                                      1993 to date; Vice President: IAA Trust Company, 1993 to date;    
                                                      Vice Chairman, Board of Trustees, IAA Foundation, 1993 to   
                                                      date; Vice President and Director: IAA Trust Company, 1994  
                                                      to date; Vice President and Director: Country Medical Plans,
                                                      Inc., 1996 to date; Director: AgriVisor Services, Inc. and  
                                                      Illinois Agricultural Service Company, 1994 to date;        
                                                      Director, IAA Communications Company, 1993 to 1996;         
                                                      Vice-President, IAA Communications Company, 1994 to 1996;    
                                                      Coordinating Committee Member of GROWMARK, Inc., 1994 to    
                                                      date. Member of Broadcast Partners Steering Committee, 1996 
                                                      to date. Farmer.                                            
                                                      
Bruce D. Finks (45)           Vice President since    Vice President - Investments, IAA Trust Company, 1995 to date
                              1996                    and Director of Investments, 1995 to date; Head of the
                                                      committee of portfolio managers of the Growth Fund, 1998 to 
                                                      present; Primary portfolio manager of the Growth Fund from
                                                      1994 to 1996; Portfolio manager, 1992 to 1994.              
                    
Richard M. Miller (60)        Vice President since    Senior Vice President and Senior Trust Officer: IAA Trust
                              1992                    Company, 1991 to date (prior thereto Senior Vice President
                                                      and Trust Officer).

Duane L. Miller (61)          Vice President since    President, Director and Chairman of the Board of Directors of
                              1998                    Middlesex Mutual Assurance Company and Midfield Corporation,
                                                      1998 to date. Chief Executive Officer (Executive Vice       
                                                      President and CEO until 1998), Country Medical Plans, Inc.,               
                                                      1996 to date, CC Services, Inc., Country Capital Management 
                                                      Company, Country Casualty Insurance Company, Country Investors 
                                                      Life Assurance Company, Country Life Insurance 
</TABLE>



                                                                              11
<PAGE>   42
<TABLE>
<CAPTION>

                              POSITIONS HELD
NAME AND AGE                  WITH THE FUNDS          PRINCIPAL OCCUPATION(S) DURING PAST FIVE YEARS
- ------------                  --------------          ----------------------------------------------
<S>                           <C>                     <C>
                                                      Company, Country Mutual Insurance Company and Country       
                                                      Preferred Insurance Company, 1974 to date. Chief Executive 
                                                      Officer of IAA Trust Company, 1997 to date.                  
                                                      
                   
Paul M. Harmon (56)           Secretary since 1995    General Counsel: Illinois Agricultural Association and
                              and General Counsel     affiliated companies, 1996 to date.  Deputy General Counsel:
                              since 1996              Illinois Agricultural Association and affiliated companies,
                                                      1991 to 1996.  Secretary: Country Capital Management Company,
                                                      1995 to date.  General Counsel, Secretary and Director,
                                                      Middlesex Mutual Assurance Company and Midfield Corporation,
                                                      1998 to date. Secretary, IAA Trust Company, 1996 to 1998.

Robert W. Weldon (64)         Treasurer since 1975    Vice President - Finance and Treasurer: IAA Trust Company,
                                                      Illinois Agricultural Association, Country Life Insurance
                                                      Company, Country Mutual Insurance Company, Country Casualty
                                                      Insurance Company, Country Preferred Insurance Company, and
                                                      Country Capital Management Company, 1974 to date; Director
                                                      and Treasurer: Illinois Agricultural Service Company, 1974 to
                                                      date; Vice President - Finance and Treasurer: CC Services,
                                                      Inc.(3), 1975 to date; Country Investors Life Assurance
                                                      Company, 1981 to date; AgriVisor Services, Inc., 1984 to
                                                      date; Country Medical Plans, Inc., 1996 to date. Treasurer:
                                                      IAA Communications Company, 1990 to 1996; Illinois
                                                      Agricultural Holding Co., 1974 to date; Illinois Agricultural
                                                      Auditing Association, 1974 to date.

Richard F. Day (58)           Controller since 1992   Controller, IAA Trust Company, 1974 to date.

<FN>

(1)    IAA Trust Taxable Fixed Income Series Fund, Inc. was formerly IAA Trust Money Market Fund, Inc.
(2)    The mailing  address for all officers and  directors of the funds is c/o IAA Trust  Company,  808 IAA Drive,
       Bloomington, Illinois 61702.
(3)    CC Services, Inc. was organized to provide insurance brokerage,
       administrative, marketing and other services to the insurance companies
       affiliated with the Illinois Agricultural Association.
</TABLE>

       The directors of the funds receive a directors fee of $200 for the GROWTH
FUND and $50 for each of the ASSET ALLOCATION FUND, TAX EXEMPT BOND FUND, MONEY
MARKET FUND, SHORT-TERM GOVERNMENT BOND FUND and LONG-TERM BOND FUND. This fee
is paid for each day or a portion thereof spent in a meeting or meetings of the
Board of Directors or while engaged in special work authorized by the President
of the funds or the Board of Directors. The directors may also be reimbursed for
travel expenses for each meeting of the Board of Directors attended, and while
engaged in special work authorized by the President of the funds or by the Board
of Directors. Directors and officers receive no other compensation from the
funds for their services. The funds do not provide any pension or retirement
benefits for the directors. During the fiscal year ended June 30, 1998, the
aggregate amount of fees and expenses paid to directors and officers was $9,474.

        Ms. Miller and Messrs. Warfield and Allen serve as members of the
Executive Committee. Mr. Warfield is Chairman of the Executive Committee. Ms.
Cole, Erickson and Miller and Mr. Allen are members of the Nominating Committee.




                                                                              12
<PAGE>   43

        The following table provides information regarding the compensation paid
by the funds to the directors for their services during the fiscal year ended
June 30, 1998.

<TABLE>
<CAPTION>

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


                                                      TOTAL COMPENSATION FROM
NAME                                           FUNDS AND FUND COMPLEX PAID TO DIRECTORS
- ----------------------------------------------------------------------------------------

<S>                                                           <C>      
     Ronald R. Warfield                                       $    0
     Herbert G. Allen                                         $1,400
     Charlot R. Cole                                          $1,400
     Nancy J. Erickson                                        $1,050
     William E. Klein, Sr.                                    $1,400
     Aileen Miller                                            $1,400
     Rollie D. Moore                                          $  700

- -------------------------------- ----- -------------------------------------------------
</TABLE>



                                 CONTROL PERSONS
                       AND PRINCIPAL HOLDERS OF SECURITIES

   Ownership of 25% or more of a voting security is deemed "control" as defined
   in the Investment Company Act of 1940. So long as 25% of a fund is so owned,
   such owners will be presumed to be in control of such fund for purposes of
   voting on certain matters submitted to a vote of shareholders. Principal
   holders own of record or beneficially 5% or more of a fund's outstanding
   voting securities.

   
   CONTROL PERSONS
   As of September 30, 1998, IAA Trust Company owned of record the following
   shares (and corresponding percentage) of the issued and outstanding capital
   stock of each fund:
    

<TABLE>
<CAPTION>

         FUND NAME                  NUMBER OF SHARES                 PERCENTAGE
         ---------                  ----------------                 ----------

   

<S>                                    <C>                              <C>   
         GROWTH FUND                    3,053,376.69                    52.10%
         ASSET ALLOCATION FUND           910,642.324                    73.75%
         TAX EXEMPT BOND FUND            232,558.140                    11.96%
         MONEY MARKET FUND            53,017,831.690                    87.27%
         SHORT-TERM GOVERNMENT
             BOND FUND                 2,714,929.045                    97.08%
         LONG-TERM BOND FUND           3,414,196.622                    94.72%
</TABLE>

    


   IAA Trust Company's address is 808 IAA Drive, Bloomington, Illinois. IAA
   Trust Company is organized under the laws of the State of Illinois. Illinois
   Agricultural Holding Co. owns 95% of the outstanding voting securities of IAA
   Trust Company.

   
   PRINCIPAL HOLDERS
   As of September 30, 1998, Country Life Insurance Company owned 415,525.352
   shares or 6.06% of the outstanding shares of the GROWTH FUND, and 96,227.589
   shares or 7.79% of the outstanding shares of the ASSET ALLOCATION FUND.
    




                                       13
<PAGE>   44

   Substantially all of the issued and outstanding voting securities of Country
   Life Insurance Company are owned by Illinois Agricultural Holding Co. and
   approximately 98% of the outstanding voting securities of this latter company
   are owned by Illinois Agricultural Association. Each of these companies is
   incorporated in Illinois. The home office address for Illinois Agricultural
   Holding Co., Illinois Agricultural Association and Country Life Insurance
   Company is 1701 Towanda Avenue, Bloomington, Illinois.

   
   MANAGEMENT OWNERSHIP
   --------------------
   As of September 30, 1998, the officers and directors of the funds as a group
   owned less than 1% of the issued and outstanding capital stock of any fund.
    


                     INVESTMENT ADVISORY AND OTHER SERVICES

   THE INVESTMENT ADVISER
   ----------------------
   The funds' investment adviser is IAA Trust Company. The funds and the adviser
   have entered into investment advisory agreements with respect to each fund
   which are renewable annually by the Board of Directors or by votes of a
   majority of each fund's outstanding voting securities. Any such renewals must
   also be approved by the votes of a majority of each fund's directors who are
   not parties to the agreements or interested persons of any such party, cast
   in person at a meeting called for the purpose of voting on such approvals.
   The agreements may be terminated without penalty at any time by the Board of
   Directors of a fund, by votes of the shareholders or by the adviser upon
   sixty days written notice. The agreements terminate automatically if
   assigned.

   For providing investment advisory services and assuming certain fund
   expenses, each fund pays the adviser annual fees that are based on each
   fund's average daily net assets. Such fees are computed on a daily basis and
   paid monthly. The table below lists these annual fees as well as the total
   dollar amounts that each fund paid the adviser for the last three fiscal
   years.
<TABLE>
<CAPTION>

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


                                                                             FEES PAID
                                                 -------------------------------------------------------------------
                                 ADVISORY      
         FUND NAME                 FEE           YEAR END 6/30/96           YEAR END 6/30/97        YEAR END 6/30/98  
     --------------------------------------------------------------------------------------------------------------

<S>                               <C>                 <C>                     <C>                 <C>        
     GROWTH FUND                  0.75%               $580,601                $709,406            $ 1,154,966

     ASSET ALLOCATION FUND        0.75%               $ 78,490                $ 85,470            $   123,435

     TAX EXEMPT BOND FUND         0.50%               $ 93,863                $ 89,246            $    89,775

     MONEY MARKET FUND            0.50%               $201,429                $193,648            $   292,932

     SHORT-TERM GOVERNMENT
     BOND FUND                    0.50%                     NA                $  6,982*           $   133,520

     LONG-TERM BOND FUND          0.75%                     NA               $ 11,550*            $   275,862


     ------------------------------------------------------------------------------------------------------------
<FN>


   * For the SHORT-TERM GOVERNMENT BOND FUND and LONG-TERM BOND FUND, advisory fees for the fiscal year ended
     6/30/97 are for the period January 2, 1997 (commencement of operations) through 6/30/97. For this same
     period, the SHORT-TERM GOVERNMENT BOND FUND and LONG-TERM BOND FUND waived advisory fees and reimbursed
     expenses totaling $32,422 and $35,805, respectively. For the period ended 6/30/98, the SHORT-

</TABLE>



                                       14
<PAGE>   45


      TERM GOVERNMENT BOND FUND and LONG-TERM BOND FUND waived advisory fees and
      reimbursed expenses totaling $10,437 and $75,493, respectively.

   CONTROLLING SHAREHOLDERS
   ------------------------
   Illinois Agricultural Holding Co. owns 95% of the outstanding voting
   securities of IAA Trust Company, the investment adviser for the funds.
   Approximately 98% of the issued and outstanding voting stock of the Illinois
   Agricultural Holding Co. is owned by the Illinois Agricultural Association,
   an Illinois not-for-profit membership corporation organized to promote the
   interest of agriculture.

   FUND OFFICERS AFFILIATED WITH ADVISER
   -------------------------------------
   The following persons who are officers and/or directors of the funds also
   hold positions with the adviser as indicated: Ronald R. Warfield, Director
   and President; Duane L. Miller, Chief Executive Officer; Bruce D. Finks, Vice
   President - Investments; Richard M. Miller, Senior Vice President and Senior
   Trust Officer; Rollie D. Moore, Director and Vice President; William E.
   Klein, Director; Paul M. Harmon, Secretary and General Counsel; Robert W.
   Weldon, Vice President - Finance and Treasurer; Richard F. Day, Controller.

   THE DISTRIBUTOR
   ---------------
   FPS Broker Services, Inc. ("FPSB"), 3200 Horizon Drive, P.O. Box 61503, King
   of Prussia, PA 19406-0903 is the primary and exclusive distributor of the
   funds' shares, pursuant to Underwriting Agreements with each fund. As
   distributor, FPSB will use its best efforts to effect such distributions, but
   it is required to take and pay for only such securities as it sells to the
   public. Commissions for the sale of shares received by FPSB do not represent
   compensation paid by the funds to FPSB and are not expenses of the funds. 
   Effective on or about January 1, 1999, FPSB will be acquired by First Data
   Distributors, Inc. ("FDDI"), pursuant to a corporate reorganization. Each
   fund has entered into Underwriting Agreements with FDDI that are identical in
   terms and conditions as those with FPSB. The address will remain the same.
   FDDI is a wholly-owned subsidiary of First Data Investor Services Group,
   Inc., the fund's transfer agent.

   RULE 12B-1 PLANS
   ----------------
   The shareholders of the GROWTH FUND, ASSET ALLOCATION FUND, TAX EXEMPT BOND
   FUND, SHORT-TERM GOVERNMENT BOND FUND, and LONG-TERM BOND FUND have adopted
   respective Plans of Distribution pursuant to Rule 12b-1 under the Investment
   Company Act of 1940. All payments made pursuant to the plans shall be made
   for the purpose of promoting the sale of shares or other such
   distribution-related expenses, including any distribution or service fees
   paid to securities dealers, investment advisers, financial planners, and
   others, who have executed a distribution agreement with the distributor.

   The plans are considered reimbursement plans because the funds reimburse the
   distributor for actual distribution and shareholder servicing expenses
   incurred by the distributor not exceeding, on an annual basis, 0.25% of each
   fund's average daily net assets. Because the funds reimburse the distributor
   only for actual expenditures, the distributor realizes no profit from the
   plans. The plans may be terminated at any time and the funds shall have no
   liability for expenses that were not reimbursed as of the date of
   termination. The funds do not participate in any joint distribution
   activities and fees paid under the plans may not be used to finance the
   distribution of the shares of another fund. Any unreimbursed expenses
   incurred under the plans will not be carried over to future years.

   FPSB was reimbursed $29,240 by the GROWTH FUND during the fiscal year ended
   June 30, 1998, pursuant to its Plan. The principal types of activities for
   which payments were made include: compensation to dealers - $25,960,
   compensation to distributor - $2,132, printing costs - $14,013 and
   advertising expenses - $4,857.

   FPSB was reimbursed $2,100 by the ASSET ALLOCATION FUND during the fiscal
   year ended June 30, 1998, pursuant to its Plan. The principal types of
   activities for which payments were made include: compensation to dealers -
   $779, compensation to distributor - $947, printing costs - $1,470 and
   advertising expenses - $819.

   FPSB was reimbursed $6,300 by the TAX EXEMPT BOND FUND during the fiscal year
   ended June 30, 1998, pursuant to its Plan. The principal types of activities
   for which payments were made include: compensation to dealers - $8,119,
   compensation to distributor - $940, printing costs - $1,673 and advertising
   expenses - $872.

   FPSB was reimbursed $7,314 by the SHORT-TERM GOVERNMENT BOND FUND during the
   fiscal year ended June 30, 1998, pursuant to its Plan. The principal types of
   activities for which payments were made include: compensation to dealers -
   $20, compensation to distributor - $698, printing costs - $2,382 and
   advertising expenses - $379.



                                                                              15
<PAGE>   46

   FPSB was reimbursed $10,262 by the LONG-TERM BOND FUND during the fiscal year
   ended June 30, 1998, pursuant to its Plan. The principal types of activities
   for which payments were made include: compensation to dealers - $20,
   compensation to distributor - $757, printing costs - $3,252 and advertising
   expenses - $498.

   EXPENSES
   --------
   Each fund pays all expenses not assumed by IAA Trust Company, including, but
   are not limited to: directors' fees, audit fees, legal fees, interest
   expenses, brokerage commissions, registration and notification of shares for
   sale with the SEC and with various state securities commissions, taxes, cost
   of insurance, fees of the funds' administrator, transfer agent or other
   service providers, costs of obtaining quotations of portfolio securities,
   pricing of fund shares and payments under its respective distribution plans.

                             OTHER SERVICE PROVIDERS
   THE TRANSFER AGENT
   ------------------
   First Data Investor Services Group, Inc. a wholly owned subsidiary of First
   Data Corporation, which has its principal business address at 4400 Computer
   Drive, Westborough, MA 01581, provides transfer agency and dividend
   disbursing agent services for the funds. As part of these services, First
   Data Investor Services Group will maintain records pertaining to the sale,
   redemption, and transfer of fund shares and will distribute each fund's cash
   dividends to shareholders. For such services, each fund will pay First Data
   Investor Services Group fees which management believes are comparable to fees
   charged by others who perform such transfer agency services.

   The GROWTH FUND paid transfer agent fees totaling $67,980, $74,484 and
   $75,623, respectively, for the fiscal years ended June 30, 1996, 1997 and
   1998. The ASSET ALLOCATION FUND paid transfer agent fees totaling $7,695,
   $9,043 and $9,262, respectively, for the fiscal years ended June 30, 1996,
   1997 and 1998. The TAX EXEMPT BOND FUND paid transfer agent fees totaling
   $14,263, $13,220 and $13,418, respectively, for the fiscal years ended June
   30, 1996, 1997 and 1998. The MONEY MARKET FUND paid transfer agent fees
   totaling $39,872, $42,866 and $39,680, respectively, for the fiscal years
   ended June 30, 1996, 1997 and 1998. For the period of January 2, 1997
   (commencement of operations) to June 30, 1997, fees totaling $12,056 for
   transfer agent services were accrued for the SHORT-TERM GOVERNMENT BOND FUND,
   but the service provider voluntarily agreed to waive fees totaling $4,500.
   For the fiscal year ended June 30, 1998, transfer agent fees totaled $24,899.
   For the period of January 2, 1997 (commencement of operations) to June 30,
   1997, fees totaling $12,058 for transfer agent services were accrued for the
   LONG-TERM BOND FUND, but the service provider voluntarily agreed to waive
   fees totaling $4,500. For the fiscal year ended June 30, 1998, transfer agent
   fees totaled $24,901.

   ACCOUNTING SERVICES
   -------------------
   The funds have entered into Accounting Services Agreements with First Data
   Investor Services Group. These agreements require First Data Investor
   Services Group to calculate each fund's net asset value in accordance with
   the provisions of the funds' current Prospectus and to prepare for fund
   approval and use various government reports, tax returns, and proxy
   materials. Each fund will pay a minimum fee of $25,000 for these services and
   additional fees based on declining percentages of their respective average
   net assets in excess of $10,000,000. Management believes that the fees for
   these services are comparable to those charged by others who perform such
   accounting services.

   The GROWTH FUND paid accounting fees of $48,794, $53,396 and $61,098,
   respectively, for the fiscal years ended June 30, 1996, 1997, and 1998. The
   ASSET ALLOCATION FUND paid accounting fees of $28,996, $29,320 and $32,512,
   respectively, for the fiscal years ended June 30, 1996, 1997 and 1998. The
   TAX EXEMPT BOND FUND paid accounting fees of $35,352, $33,041 and $32,993,
   respectively for the fiscal years ended June 30, 1996, 1997 and 1998. The
   MONEY MARKET FUND paid accounting fees of $37,196, $35,760 and $43,806,
   respectively, for the fiscal years ended June 30, 1996, 1997 and 1998. For
   the period of January 2, 1997 (commencement of operations) to June 30, 1997,
   the SHORT-TERM GOVERNMENT BOND FUND accrued accounting fees of $12,500, but
   the service provider voluntarily agreed to waive fees totaling $4,688. For
   the year ended June 30, 1998, the fund paid $31,135 for accounting services.
   For the period of January 2, 1997 (commencement of operations) to June 30,
   1997, the LONG-TERM BOND FUND accrued accounting fees of $12,500, but the
   service provider voluntarily agreed to waive fees totaling $4,688. For the
   year ended June 30, 1998, the fund paid $34,873 for accounting services.


                                                                              16
<PAGE>   47

   ADMINISTRATIVE SERVICES
   -----------------------
   The funds have entered into Administration Agreements with First Data
   Investor Services Group. These Agreements provide that the Administrator
   shall provide all administrative services to each fund other than those
   relating to the investment portfolio of the funds, the distribution of the
   funds and the maintenance of each fund's financial records. The fees for
   these services are based on declining percentages of each fund's average net
   assets beginning at .0015% of the first $50,000,000 of average net assets,
   .0010% on the next $50,000,000 of average net assets, and .0005% over
   $100,000,000 of average net assets. The funds are, however, required to pay
   minimum annual administrative fees. The minimum annual fee for the GROWTH
   FUND is $50,000. The minimum annual administrative fee for each of the ASSET
   ALLOCATION FUND, TAX EXEMPT BOND FUND, MONEY MARKET FUND, SHORT-TERM
   GOVERNMENT BOND FUND and LONG-TERM BOND FUND is $10,000.

   For the fiscal year ended June 30, 1998, the GROWTH FUND, ASSET ALLOCATION
   FUND, TAX EXEMPT BOND FUND, MONEY MARKET FUND, SHORT-TERM GOVERNMENT BOND
   FUND and LONG-TERM BOND FUND paid fees of $118,256, $12,695, $14,331,
   $46,018, $23,688, and $30,584, respectively, for administrative services.

   THE CUSTODIAN
   -------------
   IAA Trust Company, 808 IAA Drive, Bloomington, Illinois 61702, serves as
   custodian for the funds. IAA Trust Company is an affiliated person of the
   funds. As custodian, IAA Trust Company is responsible for, among other
   things, safeguarding and controlling each fund's cash and securities,
   handling the receipt and delivery of securities and collecting interest and
   dividends on each fund's investments. None of the directors, officers or
   other employees of the funds ever have personal possession of any fund's
   investments. These services do not include any managerial or policy making
   functions of the funds. The funds have agreed to pay the custodian such
   compensation as may be agreed upon from time to time, but currently the
   custodian is voluntarily waiving the receipt of any fees for custodial
   services.

   INDEPENDENT ACCOUNTANTS
   -----------------------
   The accounting firm of PricewaterhouseCoopers LLP, 2400 Eleven Penn
   Center, Philadelphia, Pennsylvania, has been designated as independent
   accountants for each fund. PricewaterhouseCoopers LLP performs annual
   audits of each fund and is periodically called upon to provide accounting and
   tax advice.


                                    BROKERAGE

   THE GROWTH FUND AND THE ASSET ALLOCATION FUND:
   These funds always seek to effect their respective transactions in buying and
   selling portfolio securities, acting through a broker as agent or with a
   dealer as principal so that they can obtain reasonable execution at the most
   favorable prices. Accordingly, each fund, through IAA Trust Company, the
   investment adviser, negotiates commission rates in accordance with the
   reliability and quality of a broker's or dealer's services, the financial
   condition of the firm and the value and expected contribution of the
   broker-dealer to the performance of the fund on a continuing basis. Thus,
   what a fund determines to be the most favorable commission price may be
   higher than the lowest available price. In evaluating the overall
   reasonableness of brokerage commissions paid, each fund through its
   investment adviser maintains an awareness of general practices with regard to
   commission levels and rates charged by reputable brokerage firms.

   A fund may, subject to the primary brokerage allocation criterion that a fund
   obtain reasonable execution at the most favorable prices, place orders for
   the purchase or sale of portfolio securities with brokers or dealers who have
   provided research, statistical, or other financial information to the fund or
   its investment adviser. Brokerage house research generally provides economic
   and financial market analysis as well as industry studies and investment
   analysis of individual companies or entities.

   The primary brokerage allocation criterion of the funds is that each fund
   obtain reasonable execution at the most favorable prices. If two or more
   brokers or dealers meet this criterion, a fund may, although there is no
   undertaking or agreement with any broker or dealer to do so or any specific
   internal allocation procedure, place orders for the purchase or sale of
   portfolio securities with brokers or dealers who have provided research,


                                                                              17
<PAGE>   48

   statistical or other financial information to the fund or its investment
   adviser. Research information obtained from brokers and dealers while
   servicing the fund may be used by IAA Trust Company in servicing all of its
   accounts and, conversely, research information obtained from brokers and
   dealers while servicing other accounts may be used by IAA Trust Company in
   servicing the fund. Further, not all research information obtained from
   brokers and dealers while serving the fund may be used by the fund.

   Over-the-counter transactions are usually placed with a principal market
   maker unless a better net security price is obtainable elsewhere.

   During the fiscal years ended June 30, 1996, 1997 and 1998, brokerage
   commissions paid by the GROWTH FUND totaled $58,079, $80,557 and $128,562,
   respectively. No brokerage transactions were allocated to brokers or dealers
   for the sale of the fund's shares; such sales are made by FPS Broker
   Services, Inc. and Country Capital Management Company through their own
   representatives.

   During the fiscal years ended June 30, 1996, 1997 and 1998, brokerage
   commissions paid by the ASSET ALLOCATION FUND totaled $5,540, $6,667 and
   $6,708, respectively. No brokerage transactions were allocated to brokers or
   dealers for the sale of the fund's shares; such sales are made by FPS Broker
   Services, Inc. and Country Capital Management Company through their own
   representatives.

   There may be occasions when portfolio transactions for these funds are
   executed as part of concurrent authorizations to purchase or sell the same
   security for other funds served by IAA Trust Company. Although such
   concurrent authorizations potentially could be either advantageous or
   disadvantageous to a fund, they are effected only when a fund, acting on the
   advice of IAA Trust Company, believes that to do so is in the interest of
   such fund. When such concurrent authorizations occur, the executions will be
   allocated in an equitable manner.


   TAX EXEMPT BOND FUND, SHORT-TERM GOVERNMENT BOND FUND,
   and LONG-TERM BOND FUND:
   The TAX EXEMPT BOND FUND, SHORT-TERM GOVERNMENT BOND FUND and LONG-TERM BOND
   FUND seek to effect their transactions in buying and selling portfolio
   securities, acting through a broker as agent or with a dealer as principal,
   so that they can obtain reasonable execution at the most favorable prices.
   Accordingly, a fund, through IAA Trust Company, its investment adviser,
   negotiates commission rates in accordance with the reliability and quality of
   a broker's or dealer's services, the financial condition of the firm and the
   value and expected contribution of the broker-dealer to the performance of
   the fund on a continuing basis. Thus, what a fund determines to be the most
   favorable commission price may be higher than the lowest available price. In
   evaluating the overall reasonableness of brokerage commissions paid, a fund
   maintains through its investment adviser an awareness of general practices
   with regard to commission levels and rates charged by reputable brokerage
   firms.

   The primary brokerage allocation criterion of the TAX EXEMPT BOND FUND,
   SHORT-TERM GOVERNMENT BOND FUND and LONG-TERM BOND FUND is that each fund
   obtain reasonable execution at the most favorable prices. If two or more
   brokers or dealers meet this criterion, a fund may place orders for the
   purchase or sale of portfolio securities with brokers or dealers who have
   provided research, statistical or other financial information to the
   investment adviser of the fund. Brokerage house research generally provides
   economic and financial market analysis as well as industry studies and
   investment analysis of individual companies or entities.

   It is the opinion of the investment adviser, that the furnishing of research,
   statistical, and other financial information to a fund, or the fund's
   investment adviser, by brokers and dealers, will not materially reduce the
   cost to the investment adviser of fulfilling the terms of its advisory
   contract with the fund because the investment adviser must review and analyze
   such information along with all other information available to it. Research
   information obtained from brokers and dealers while servicing a fund may be
   used by IAA Trust Company in servicing all of its accounts and, conversely,
   research information obtained from brokers and dealers while servicing other
   accounts may be used by IAA Trust Company in servicing each fund. Further,
   not all research information obtained from brokers and dealers while serving
   the funds may be used by a fund.



                                                                              18
<PAGE>   49

   During the fiscal years ended 1996, 1997 and 1998, all transactions for the
   TAX EXEMPT BOND FUND were placed with a principal market dealer. For the
   period of January 2, 1997 (commencement of operations) to June 30, 1997, and
   the fiscal year ended June 30, 1998, all transactions for both the SHORT-TERM
   GOVERNMENT BOND FUND and LONG-TERM BOND FUND were placed with a principal
   market dealer. No commissions are paid on transactions with the principal
   market dealer as the asked price on such transactions usually includes an
   allowance for such compensation.

   No brokerage transactions are allocated to brokers or dealers for the sale of
   a fund's shares; such sales are made by FPS Broker Services, Inc. and Country
   Capital Management Company through their own representatives.

   There may be occasions when portfolio transactions for the funds are executed
   as part of concurrent authorizations to purchase or sell the same security
   for other funds served by IAA Trust Company. Although such concurrent
   authorizations potentially could be either advantageous or disadvantageous to
   a fund, they are effected only when a fund, acting on the advice of IAA Trust
   Company, believes that to do so is in the interest of such fund. When such
   concurrent authorizations occur, the executions will be allocated in an
   equitable manner.

   MONEY MARKET FUND:
   The MONEY MARKET FUND, acting on recommendations received from its investment
   adviser, IAA Trust Company, expects that purchases and sales of portfolio
   securities usually will be principal transactions. Portfolio securities will
   normally be purchased directly from the issuer or from an underwriter or a
   market maker for the securities. Usually, no brokerage commissions will be
   paid on such purchases. Purchases from underwriters of portfolio securities
   will include a concession paid by the issuer to the underwriter and the
   purchase price paid to market makers for money market instruments may include
   the spread between the bid and asked price.

   The primary consideration in the allocation of portfolio transactions will be
   prompt and effective execution of orders at the most favorable price. If two
   or more brokers or dealers meet this criterion, the fund may, although there
   is no undertaking or agreement with any broker or dealer to do so or any
   specific internal allocation procedure, place orders for the purchase or sale
   of portfolio securities with brokers or dealers who have provided research,
   statistical, or other financial information to the fund or its investment
   adviser. Brokerage house research generally provides economic and financial
   market analysis as well as industry studies and investment analysis of
   individual companies or entities. Such information is of the kind generally
   supplied by broker-dealers to their customers without obligation. This
   information may be used by IAA Trust Company to supplement its own research
   and analysis. Although it is not possible to place a dollar value on this
   information, it is the opinion of IAA Trust Company that the receipt and
   study of such information does not reduce its expenses. Research information
   obtained from brokers and dealers while servicing the fund may be used by IAA
   Trust Company in servicing all of its accounts and, conversely, research
   information obtained from brokers and dealers while servicing other accounts
   may be used by IAA Trust Company in servicing the fund. Further, not all
   research information obtained from brokers and dealers while servicing the
   fund may be used by the fund.

   During the fiscal years ended June 30, 1996, 1997 and 1998, the MONEY MARKET
   FUND incurred no brokerage commissions.

   There may be occasions when portfolio transactions for this fund are executed
   as part of concurrent authorizations to purchase or sell the same security
   for other funds served by IAA Trust Company. Although such concurrent
   authorizations potentially could be either advantageous or disadvantageous to
   a fund, they are effected only when a fund, acting on the advice of IAA Trust
   Company, believes that to do so is in the interest of such fund. When such
   concurrent authorizations occur, the executions will be allocated in an
   equitable manner.

   ALL FUNDS:
   IAA Trust Company has an arrangement with Lipper Analytical Securities
   Corporation whereby IAA Trust Company receives specific research products
   known as Lipper-Mutual Fund Performance Analysis (Weekly) in exchange for
   placing an agreed-upon amount of trades on behalf of privately managed
   accounts and the Funds. If IAA Trust Company does not place all of the
   agreed-upon amount of trades, any remaining amounts will be carried forward
   to future years.


                                                                              19
<PAGE>   50

                                  CAPITAL STOCK

   There are no conversion or preemptive rights in connection with any shares of
   the funds, nor are there cumulative voting rights with respect to the shares
   of any of the funds. Each of the fund's shares has equal voting rights. Each
   issued and outstanding share of each fund is entitled to participate equally
   in dividends and distributions declared by such fund and in net assets of
   such fund upon liquidation or dissolution remaining after satisfaction of
   outstanding liabilities.

   All issued and outstanding shares of each fund will be fully paid and
   non-assessable and will be redeemable at the net asset value per share. The
   interests of shareholders in the funds will not, unless specifically
   requested in writing by a shareholder, be evidenced by a certificate or
   certificates representing shares of a fund.

   The authorized capitalizations of the GROWTH FUND, the ASSET ALLOCATION FUND,
   and the TAX EXEMPT BOND FUND consist of 10,000,000 shares for each of these
   funds, each fund having a par value of $1.00 per share.

   The authorized capitalization of the TAXABLE FIXED INCOME SERIES FUND
   consists of 250,000,000 shares with a par value of $0.10 per share. Of this
   amount, 100,000,000 shares are designated to the MONEY MARKET FUND,
   50,000,000 shares are designated to the SHORT-TERM GOVERNMENT BOND FUND, and
   25,000,000 shares are designated to the LONG-TERM BOND FUND. The remaining
   75,000,000 shares are undesignated.

   The Board of Directors has authority, without the necessity of a shareholder
   vote, to create any number of new series or classes. The directors have
   authorized one class of share to be issued.


                  PURCHASES, REDEMPTIONS, AND PRICING OF SHARES

   NET ASSET VALUE
   ---------------
   Shares of each fund are purchased at net asset value. The net asset value per
   share of each fund is calculated by adding the value of securities and other
   assets of that fund, subtracting liabilities and dividing by the number of
   its outstanding shares. Each fund's share price will be determined at the
   close of regular trading hours of the New York Stock Exchange, normally 4:00
   p.m. Eastern Time. The MONEY MARKET FUND may calculate its net asset value
   more than once a day if deemed desirable.

   VALUATION OF THE MONEY MARKET FUND
   ----------------------------------
   All securities of the MONEY MARKET FUND will be valued by using the amortized
   cost method, which involves valuing a security at its costs on the date of
   purchase and thereafter (absent unusual circumstances) assuming a constant
   amortization to maturity of any discount or premium, regardless of the impact
   of fluctuations in general market rates of interest on the value of the
   instrument. While this method provides certainty in valuation, it may result
   in periods during which a security's value, as determined by this method, is
   higher or lower than the price a fund would receive if it sold the
   instrument.

   The use by the MONEY MARKET FUND of amortized cost and the maintenance by
   this fund of a net asset value at $1.00 are permitted by regulations
   promulgated by Rule 2a-7 under the Investment Company Act of 1940, provided
   that certain conditions are met. The regulations also require the directors
   to establish procedures which are reasonably designed to stabilize the net
   asset value per share at $1.00 for this fund. Such procedures include the
   determination of the extent of deviation, if any, of the fund's current net
   asset value per share calculated using available market quotations from the
   fund's amortized cost price per share.

   VALUATION OF ALL OTHER FUNDS
   ----------------------------
   For all other funds, securities listed or admitted to trading privileges on
   any national securities exchange will be valued at the last sales price on
   that day before the time for valuation, or, if there is no sale before that
   time that day, the last bid price on such exchange before that time that day,
   the last bid price on such exchange before that time that day. Equity
   securities which are traded in the over-the-counter market only, but which
   are not included in the NASDAQ National Market System will be valued at the
   mean between the last preceding bid and asked 


                                                                              20
<PAGE>   51

   price. Valuations may also be obtained from pricing services when such prices
   are believed to reflect the fair market value. Securities with a remaining
   maturity of sixty days or less are valued at amortized cost, which
   approximates market value. Short-term notes are valued at cost. Corporate
   bonds, municipal bonds, receivables and portfolio securities not currently
   quoted as indicated above, and other assets will be valued at fair value as
   determined in good faith by the Board of Directors.

   REDEMPTIONS IN KIND
   -------------------
   The funds reserve the right to pay redemptions in kind with portfolio
   securities in lieu of cash. In accordance with its election pursuant to Rule
   18f-1 under the Investment Company Act of 1940, the funds may limit the
   amount of redemption proceeds paid in cash. The funds may, under unusual
   circumstances, limit redemptions in cash with respect to each shareholder
   during any ninety-day period to the lesser of (i) $250,000 or (ii) 1% of the
   net asset value of the fund at the beginning of such period. A shareholder
   may incur brokerage costs if the securities received were sold.

   REDEMPTIONS
   -----------
   Payment to shareholders for shares surrendered for redemption is made in cash
   as soon as practicable after surrender, within seven days, except that a
   fund: (a) may elect to suspend the redemption of shares or postpone the date
   of payment of redemption proceeds: (1) during any period that the New York
   Stock Exchange is closed (other than customary weekend and holiday closings)
   or trading on the New York Stock Exchange is restricted; (2) during any
   period in which an emergency exists as a result of which disposal of
   portfolio securities is not reasonably practicable to fairly determine the
   fund's net asset values; or (3) during such other periods as the Securities
   and Exchange Commission may by order permit for the protection of investors.

   EXCHANGE OF SHARES
   ------------------
   An exchange is effected by redemption of shares of one fund and the issuance
   of shares of the other fund selected, and only after delivery of the current
   Prospectus. With respect to an exchange among the GROWTH Fund, ASSET
   ALLOCATION FUND, TAX EXEMPT BOND FUND, SHORT-TERM GOVERNMENT BOND FUND and
   LONG-TERM BOND FUND, a capital gain or loss for Federal income tax purposes
   will be realized upon the exchange, depending upon the cost or other basis of
   the shares redeemed. With respect to the MONEY MARKET FUND, assuming such
   fund maintains its share value at $1.00 per share, an exchange of this fund's
   shares for shares of another IAA Trust fund should not create a Federal
   income tax incident, except for the establishment of a new holding period.
   The exchange privilege is not designed for use in connection with short-term
   trading or market timing strategies. The exchange privilege may be terminated
   or suspended or its terms changed at any time, subject to 60 days' prior
   notice.

   TELEPHONE INSTRUCTIONS
   ----------------------
   Neither the funds nor any of their service providers will be liable for any
   loss or expense in acting upon telephone instructions that are reasonably
   believed to be genuine. In attempting to confirm that telephone instructions
   are genuine, the funds will use such procedures that are considered
   reasonable. Shareholders assume the risk to the full extent of their accounts
   that telephone requests may be unauthorized. To the extent that a fund fails
   to use reasonable procedures to verify the genuineness of telephone
   instructions, it and/or its service contractors may be liable for any such
   instructions that prove to be fraudulent or unauthorized. All telephone
   conversations with First Data Investor Services Group will be recorded.

   RETIREMENT PLANS
   ----------------
   IAA Trust Company sponsors a prototype Defined Contribution Plan which has
   been approved by the Internal Revenue Service and which meets the requirement
   of the Tax Reform Act of 1986, as amended. This Plan can invest in shares of
   all funds except the TAX EXEMPT BOND FUND.

   For individuals eligible to establish an Individual Retirement Account
   ("IRA"), IAA Trust Company sponsors a prototype "traditional" IRA which has
   been approved by the Internal Revenue Service. An individual may be able to
   deduct contributions made to such a Plan. The deductibility of contributions
   to an IRA by taxpayers who are participants in an employer's retirement plan
   is determined by the amount of taxpayer's adjusted gross income. "Rollover
   contributions" from certain other tax-qualified plans may also be made to
   this Plan. Possible penalties may be imposed for excess IRA contributions,
   premature withdrawals or insufficient distributions after age 70 1/2.



                                                                              21
<PAGE>   52

   An investor considering either the Defined Contribution Plan or the
   "traditional" IRA , along with the two new types of IRAs which were created
   by the Taxpayers Relief Act of 1997 as described in the Prospectus, should
   consult with his or her attorney or tax advisor with respect to Plan
   requirements and tax implications. Other information relating to eligibility
   and service fees may be obtained by reading the prototype Plans and, in the
   case of IRAs, by reading the disclosure statement(s) which the IRS requires
   to be furnished to individuals who are considering the adoption of an IRA.

   For more information, contact IAA Trust Company, 808 IAA Drive, Bloomington,
   Illinois 61702 or call toll-free (800) 422-8261.

   AUTOMATIC INVESTING
   -------------------
   A shareholder may authorize automatic investing through automatic withdrawals
   from his/her bank accounts on a regular basis.

   SYSTEMATIC WITHDRAWAL PLAN
   --------------------------
   Shareholders who purchase or already own $5,000 or more of any fund's shares,
   valued at the current public offering price, and who wish to receive periodic
   payments from their account(s) may establish a Systematic Withdrawal Plan by
   completing an application. If you participate in this plan, you will receive
   monthly, quarterly or annual checks in the amount designated. While no
   particular withdrawal amount is necessarily recommended, the minimum is $25.
   The amount of payment may be changed at any time. Dividends and capital gains
   distributions on a fund's shares in the Plan are automatically reinvested in
   additional shares at net asset value. All certificates for shares deposited
   under this Plan must be surrendered and no certificates will be issued unless
   the Plan is terminated. Payments are made from the proceeds derived from the
   redemption of fund shares owned by the planholder. With respect to GROWTH
   FUND, ASSET ALLOCATION FUND, TAX EXEMPT BOND FUND, SHORT-TERM GOVERNMENT BOND
   FUND and LONG-TERM BOND FUND, each redemption of shares may result in a gain
   or loss which is reportable by the investor on their income tax return.

   Redemptions required for payments may reduce or use up the planholder's
   investment, depending upon the size and frequency of withdrawal payments and
   market fluctuations. Accordingly, Plan payments cannot be considered as yield
   or income on the investment. Additional purchases may be made under the
   Systematic Withdrawal Plan in amounts of $5,000 or more.

   First Data Investor Services Group, as agent for the shareholder, may charge
   for services rendered beyond those normally assumed by the funds. No such
   charge is currently assessed, but such a charge may be instituted by First
   Data Investor Services Group upon notice in writing to shareholders. This
   Plan may be terminated at any time without penalty upon written notice by the
   shareholder, by the funds, or by First Data Investor Services Group.

   CHECKWRITING PRIVILEGE TERMS (MONEY MARKET FUND):
   -------------------------------------------------
   Persons electing checkwriting automatically authorize the bank to honor
   checks drawn by them on the bank and appoint First Data Investor Services
   Group, the fund's transfer agent, as their agent to redeem a sufficient
   number of shares of the Money Market Fund shares to pay such checks. They
   also automatically agree: (1) The owners or owners who signs the check will
   sign their name exactly as it appears on the application or the check will
   not be honored; (2) This privilege is subject to the fund and the bank's
   rules and regulations and applicable government regulations as amended from
   time to time; (3) The bank may refuse to honor checks and the fund may refuse
   to effect redemptions to pay checks whenever the right of redemption has been
   suspended or postponed; (4) To examine confirmations and to notify the fund,
   within thirty days after mailing to the owner(s), of any error in the
   confirmations and that failure to do so shall preclude any claim against the
   fund, the distributor, the bank, First Data Investor Services Group, and each
   of their representatives and agents by reason of such failure; (5) This
   privilege may be modified or terminated by any owner by serving written
   notice to the fund, and the fund may modify or terminate it by serving
   written notice to the owner(s) thirty days in advance thereof. This feature
   is not available if a part owner is under age 14. When one of its joint
   tenants is age 14 to 17, both tenants must sign drafts.




                                                                              22
<PAGE>   53


   INTEGRATED VOICE RESPONSE (IVR) SYSTEM
   --------------------------------------
   Shareholders in the funds can obtain toll-free access to account information,
   as well as certain transactions, by calling (800) 245-2100. IVR provides
   share price, price change, account balances and history (i.e., last
   transaction, latest dividend distribution, redemptions by check during the
   last three months); and allows sales or exchanges of shares.


                              TAXATION OF THE FUNDS

   Each fund has elected to be treated, and intends to qualify each year, as a
   "regulated investment company" under Subchapter M of the Internal Revenue
   Code of 1986, by meeting all applicable requirements of Subchapter M,
   including requirements as to the nature of the fund's gross income, the
   amount of fund distributions (as a percentage of both the fund's overall
   income and, in the case of the TAX EXEMPT BOND FUND, its tax-exempt income),
   and the composition of the fund's portfolio assets. Because each fund intends
   to distribute all of its net investment income and net realized capital gains
   to shareholders in accordance with the timing requirements imposed by the
   Code, it is not expected that the funds will be required to pay any federal
   income or exise taxes. If a fund failed to qualify, it would be required to
   pay such taxes.


                            UNDERWRITER COMPENSATION

   Shares of the funds are continuously offered to the public through the
   distributor. Currently, out of commissions to be received, FPSB has agreed to
   pay all expenses incident to the distribution of shares. If commissions are
   not sufficient to pay these expenses, FPSB will look to the funds' investment
   adviser for reimbursement. For the fiscal year ended June 30, 1998 , FPSB
   received no underwriting fees.


                         CALCULATION OF PERFORMANCE DATA

   From time to time, the funds advertise their various respective performance
   measures, such as: 7- or 30-day yield; tax-equivalent yield; total percentage
   increase; and total return. Performance will vary and the results shown
   herein and in the funds' Prospectus are historical information and will not
   be representative of future results. Factors affecting the Funds' performance
   include general market conditions, operating expenses, and portfolio
   management. No adjustment has been made for taxes payable on dividends and
   distributions.

   TOTAL PERCENTAGE INCREASE
   -------------------------
   Total percentage increase is calculated for the specified periods of time by
   assuming a hypothetical investment of $1,000 in a fund's shares. Each
   dividend or other distribution is treated as having been reinvested at net
   asset value on the reinvestment date. The percentage increases stated are the
   percent that an original investment would have increased during the
   applicable period.

   AVERAGE ANNUAL TOTAL RETURN
   ---------------------------
   The GROWTH FUND, ASSET ALLOCATION FUND, TAX EXEMPT BOND FUND, LONG-TERM
   GOVERNMENT BOND FUND and SHORT-TERM BOND FUND compute their average annual
   total returns by determining the average annual compounded rates of return
   during specified periods that equate the initial amount invested to the
   ending redeemable value of such investment. This is done by dividing the
   ending redeemable value of a hypothetical $1,000 initial payment by $1,000
   and raising the quotient to a power equal to one divided by the number of
   years (or fractional portion thereof) covered by the computation and
   subtracting one from the result. This calculation can be expressed as
   follows:
                                                                         23

<PAGE>   54

     Average Annual Total Return = ( ERV/P ) RAISED TO THE 1/n POWER - 1
                              


               Where:   ERV = ending redeemable value at the end of the
                              period covered by the computation of a
                              hypothetical $1,000 payment made at the beginning
                              of the period.

                        P   = hypothetical initial payment of $1,000.

                        n   = period covered by the computation,
                              expressed in terms of years.

   The funds that compute their aggregate total returns over a specified period
   do so by determining the aggregate compounded rate of return during such
   specified period that likewise equates over a specified period the initial
   amount invested to the ending redeemable value of such investment. The
   formula for calculating aggregate total return is as follows:

                     Aggregate Total Return = [ ERV - P ]/P

               Where:   ERV = ending redeemable value at the end of the period 
                              covered by the computation of a hypothetical 
                              $1,000 payment made at the beginning of the 
                              period.

                        P   = hypothetical initial payment of $1,000.

   The calculations of average annual total return and aggregate total return
   assume the reinvestment of all dividends and capital gain distributions on
   the reinvestment dates during the period. The ending redeemable value
   (variable "ERV" in each formula) is determined by assuming complete
   redemption of the hypothetical investment and the deduction of all
   nonrecurring charges at the end of the period covered by the computations.
   Such calculations are not necessarily indicative of future results and do not
   take into account Federal, state and local taxes that shareholders must pay
   on a current basis.

   Since performance will fluctuate, performance data for the fund should not be
   used to compare an investment in a funds' shares with bank deposits, savings
   accounts and similar investment alternatives which often provide an agreed or
   guaranteed fixed yield for a stated period of time. Shareholders should
   remember that performance is generally a function of the kind and quality of
   the instruments held in a portfolio, portfolio maturity, operating expenses
   and market conditions.

   30-DAY YIELD CALCULATIONS
   -------------------------
   The ASSET ALLOCATION FUND, TAX EXEMPT BOND FUND, LONG-TERM GOVERNMENT BOND
   FUND and SHORT-TERM BOND FUND calculate a 30-day yield by dividing the net
   investment income per share (as described below) earned by the fund during a
   30-day (or one month) period by the maximum offering price per share on the
   last day of the period. The result is then annualized on a semi-annual basis
   by adding one to the quotient, raising the sum to the power of six,
   subtracting one from the result and then doubling the difference. A fund's
   net investment income per share earned during the period is based on the
   average daily number of shares outstanding during the period entitled to
   receive dividends and includes dividends and interest earned during the
   period minus expenses accrued for the period, net of reimbursements. This
   calculation can be expressed as follows:

                         YIELD = 2 [ ( a - b + 1) - 1 ]
                                      -------
                                         cd

               Where:   a   = dividends and interest earned during the period.

                        b   = expenses accrued for the period (net of 
                              reimbursements).

                                                                              24
<PAGE>   55


                        c   = the average daily number of shares
                              outstanding during the period that were
                              entitled to receive dividends.

                        d   = maximum offering price per share on the last day
                              of the period.

   For the purpose of determining net investment income earned during the period
   (variable "a" in the formula), dividend income on equity securities held by a
   fund is recognized by accruing 1/360 of the stated dividend rate of the
   security each day that the security is in the fund. Except as noted below,
   interest earned on any debt obligations held by a fund is calculated by
   computing the yield to maturity of each obligation held by that fund based on
   the market value of the obligation (including actual accrued interest) at the
   close of business on the last business day of the month, the purchase price
   (plus actual accrued interest) and dividing the result by 360 and multiplying
   the quotient by the market value of the obligation (including actual accrued
   interest) in order to determine the interest income on the obligation for
   each day of the subsequent month that the obligation is held by that fund.
   For purposes of this calculation, it is assumed that each month contains
   thirty days. The date on which the obligation reasonably may be expected to
   be called or, if none, the maturity date. With respect to debt obligations
   purchased at a discount or premium, the formula generally calls for
   amortization of the discount premium. The amortization schedule will be
   adjusted monthly to reflect changes in the market values of such debt
   obligations.

   Expenses accrued for the period (variable "b" in the formula) include all
   recurring fees charged by a fund to all shareholder accounts in proportion to
   the length of the base period and the fund's mean (or median) account size.
   Undeclared earned income will be subtracted from the offering price per
   capital share (variable "d" in the formula).

   With respect to the TAX EXEMPT BOND FUND, interest earned on tax-exempt
   obligations that are issued without original issue discount and have a
   current market discount is calculated by using the coupon rate of interest
   instead of the yield to maturity. In the case of tax-exempt obligations that
   are issued with original issue discount but which have discounts based on
   current market value that exceed the then-remaining portion of the original
   discount (market discount), the yield to maturity is the imputed rate based
   on the original issue discount calculation. On the other hand, in the case of
   tax-exempt obligations that are issued with original issue discount but which
   have discounts based on current market value that are less than the
   then-remaining portion of the original discount (market premium), the yield
   to maturity is based on the market value.

   With regard to mortgage or other receivables-backed obligations which are
   expected to be subject to monthly payments of principal and interest
   ("pay-downs"): (i) gain or loss attributable to actual monthly pay-downs are
   accounted for as an increase or decrease to interest income during the
   period; and (ii) a fund may elect either (a) to amortize the discount and
   premium on the remaining security, based on the cost of the security, to the
   weighted average maturity date, if such information is available, or to the
   remaining term of the security, if any, if the weighted average date is not
   available or (b) not to amortize discount or premium on the remaining
   security.

   TAX-EQUIVALENT YIELD CALCULATIONS
   ---------------------------------
   With respect to the TAX EXEMPT BOND FUND, the "tax-equivalent yield" of this
   fund is computed by: (a) dividing that portion of the fund's yield
   (calculated as above) that is tax-exempt by one minus a stated Federal income
   tax rate, and (b) adding the quotient to that portion, if any, of the fund's
   yield that is not tax-exempt.

   The tax equivalent yield reflects the taxable yield that an investor at the
   highest marginal Federal income tax rate would have to receive to equal the
   primarily tax-exempt yield from the fund. Before investing in a tax-exempt
   fund, you may want to determine which investment -- tax-free or taxable --
   will result in a higher after-tax yield. To do this, divide the yield on the
   tax-free investment by the decimal determined by subtracting from 1 the
   highest Federal tax rate you pay. For example, if the tax-free yield is 5%
   and your maximum tax bracket is 39.6%, the computation is:

 5% Tax-Free Yield - (1/.396 Tax Rate) = 5%/.604% = 8.2781% Tax Equivalent Yield


                                                                              25
<PAGE>   56

   In this example, your after-tax return would be higher from the 5% tax-free
   investment if available taxable yields are below 8.2781%. Conversely, the
   taxable investment would provide a higher yield when taxable yields exceed
   8.2781%.

   7-DAY YIELD CALCULATIONS
   ------------------------
   The MONEY MARKET FUND'S standard yield quotations as they appear in reports
   and other material distributed by the fund or by Country Capital Management
   Company are calculated by a standard method prescribed by rules of the
   Securities and Exchange Commission. The yield of this fund for a 7-day period
   (the "base period") will be computed by determining the net change in the
   value (calculated as set forth below) of a hypothetical account having a
   balance of one share at the beginning of the period, dividing the net change
   in account value by the value of the account at the beginning of the base
   period to obtain the base period return, and multiplying the base period
   return by 365/7 with the resulting yield figure carried to the nearest
   hundredth of one percent.

   Net changes in value of a hypothetical account will include the value of
   additional shares purchased with dividends from the original share and
   dividends declared on both the original share and any such additional shares,
   but will not include realized gains or losses or unrealized appreciation or
   depreciation on portfolio investments.

   The effective yield is computed by compounding the unannualized base period
   return by adding 1 to the base period return, raising the sum to a power
   equal to 365 divided by 7, and subtracting one from the result, according to
   the following formula:

    Effective Yield = [(base period return + 1) RAISED TO THE 365/7 POWER ]-1

   GROWTH FUND:
   This fund's net asset value and return will fluctuate. Please note the
   differences and similarities between the investments which the fund may
   purchase for its portfolio and the investments measured by the index which is
   described in the Prospectus. Please refer to the Prospectus for specific
   information.

   
   ASSET ALLOCATION FUND:
   This fund's net asset value, return, and yield will fluctuate. The fund's
   yield for the thirty days ended September 30, 1998 was 2.83%. Yield differs
   from total return in that it only considers current income and does not take
   into account gains or losses on securities held by the fund. Please refer to
   the Prospectus for specific information.

   TAX EXEMPT BOND FUND:
   This fund's net asset value, return, and yield will fluctuate. The fund's
   yield for the thirty days ended September 30, 1998 was 3.55%. Yield differs
   from total return in that it only considers current income and does not take
   into account gains or losses on securities held by the fund. Please refer to
   the Prospectus for specific information. The above yield results in a
   tax-equivalent yield of 5.88% for the thirty days ended September 30, 1998.

   MONEY MARKET FUND:
   The yield and effective yield of this fund will vary in response to
   fluctuations in interest rates and in the expenses of the fund. For the seven
   days ended September 30, 1998 the fund's annualized standard (cash) yield was
   4.79% and its annualized effective (compound) yield was 4.91%. For
   comparative purposes, the current and effective yields should be compared to
   current and effective yields offered by competing financial institutions for
   the same base period and calculated by the methods described above.

   SHORT-TERM GOVERNMENT BOND FUND:
   This fund's net asset value, return, and yield will fluctuate. The fund's
   yield for the thirty days ended September 30, 1998 was 4.67%. Yield differs
   from total return in that it only considers current income and does not take
   into account gains or losses on securities held by the fund. Please refer to
   the Prospectus for specific information.
    

                                       26
<PAGE>   57
 

   
   LONG-TERM BOND FUND:
   This fund's net asset value, return, and yield will fluctuate. The fund's
   yield for the thirty days ended September 30, 1998 was 5.03%. Yield differs
   from total return in that it only considers current income and does not take
   into account gains or losses on securities held by the fund. Please refer to
   the Prospectus for specific information.
    


                              FINANCIAL STATEMENTS

   REPORTS TO SHAREHOLDERS
   -----------------------
   Shareholders will receive unaudited semi-annual reports describing the funds'
   investment operations and annual financial statements audited by independent
   certified public accountants.

   FINANCIAL STATEMENTS
   --------------------
   The audited financial statements and notes thereto for each fund contained in
   the Annual Report to Shareholders dated June 30, 1998, are incorporated by
   reference into this Statement of Additional Information. The financial
   statements have been audited by PricewaterhouseCoopers L.L.P. Their report
   appears in the Annual Report and is also incorporated by reference herein. No
   other parts of the Annual Report are incorporated by reference herein. Such
   financial statements and notes thereto have been incorporated herein in
   reliance on the report of PricewaterhouseCoopers L.L.P., independent
   accountants, given on the authority of said firm as experts in auditing and
   accounting.




                                       27
<PAGE>   58



               APPENDIX "A" -- DESCRIPTIONS OF SECURITIES RATINGS
               --------------------------------------------------

   COMMERCIAL PAPER RATINGS
   ------------------------

        MOODY'S INVESTORS SERVICE, INC. ("MOODY'S"): "PRIME-1" and "PRIME-2" are
   Moody's two highest commercial paper rating categories. Moody's evaluates
   the salient features that affect a commercial paper issuer's financial and
   competitive position. The appraisal includes, but is not limited to the
   review of such factors as:

          1.   Quality of management.
          2.   Industry strengths and risks.
          3.   Vulnerability to business cycles.
          4.   Competitive position.
          5.   Liquidity measurements.
          6.   Debt structures.
          7.   Operating trends and access to capital markets.

      Differing degrees of weight are applied to the above factors as deemed
   appropriate for individual situations.

        STANDARD & POOR'S, A DIVISION OF MCGRAW-HILL COMPANIES, INC. ("S&P"):
   "A-1" and "A-2" are S&P's two highest commercial paper rating categories and
   issuers rated in these categories have the following characteristics:

          1.   Liquidity ratios are adequate to meet cash requirements.
          2.   Long-term senior debt is rated "A" or better.
          3.   The issuer has access to at least two additional channels of
               borrowing.
          4.   Basic earnings and cash flow have an upward trend with allowance
               made for unusual circumstances.
          5.   Typically, the issuer is in a strong position in a
               well-established industry or industries.
          6.   The reliability and quality of management is unquestioned.

      Relative strength or weakness of the above characteristics determine
      whether an issuer's paper is rated "A-or "A-2". Additionally, within the
      "A-1" designation, those issues determined to possess overwhelming safety
      characteristics are denoted with a plus (+) rating category.

   BOND RATINGS
   ------------

      S&P: An S&P bond rating is a current assessment of the creditworthiness of
      an obligor with respect to a specific debt obligation. This assessment may
      take into consideration obligors such as guarantors, insurers or lessees.

      The bond ratings are not a recommendation to purchase, sell or hold a
      security, inasmuch as it does not comment as to market price or 
      suitability for a particular investor.

      The ratings are based on current information furnished by the issuer or
      obtained by S&P from other sources it considers reliable. S&P does not
      perform any audit in connection with any ratings and may, on occasion,
      rely on unaudited financial information. The ratings may be changed,
      suspended or withdrawn as a result of changes in, or unavailability of,
      such information, or for other circumstances.

      The ratings are based, in varying degrees, on the following
      considerations:

          I.   Likelihood of default-capacity and willingness of the obligor as
               to the timely payment of interest and repayment of principal in
               accordance with the terms of the obligation;

          II.  Nature of and provisions of the obligation;

          III. Protection afforded by, and relative position of, the obligation
               in the event of bankruptcy, reorganization or other arrangement
               under the laws of bankruptcy and other laws affecting creditor's
               rights.

   The four highest bond ratings of S&P and their meanings are:

                                                                              28
<PAGE>   59


       "AAA"   Bonds rated "AAA" have the highest rating assigned by S&P to a   
       -----   debt obligation. Capacity to pay interest and repay principal is 
               extremely strong.                                                
                                                                                
       "AA"    Bonds rated "AA" have a very strong capacity to pay interest and 
       ----    repay principal and differ from the highest rated issues only in 
               small degree.                                                    
                                                                                
       "A"     Bonds rated "A" have a strong capacity to pay interest and repay 
       ---     principal although they are somewhat more susceptible to the     
               adverse effects of changes in circumstances and economic         
               conditions than bonds in higher rated categories.                
                                                                                
       "BBB"   Bonds rated "BBB" are regarded as having an adequate capacity to 
       -----   pay interest and repay principal. Whereas they normally exhibit  
               adequate protection parameters, adverse economic conditions or   
               changing circumstances are more likely to lead to a weakened     
               capacity to pay interest and repay principal for bonds in this   
               category than for bonds in higher rated categories.              
               
    Plus (+) or Minus (-): The ratings from "AA" to "BB" may be modified by the
    addition of a plus or minus sign to show relative standing within the major
    rating categories.

    PROVISIONAL RATINGS The letter "P" indicates that the rating is provisional.
    A provisional ratings assumes the successful completion of the project being
    financed by the bonds being rated and indicate that payment of debt service
    requirements is largely or entirely dependent upon the successful and timely
    completion of the project. This rating, however, while addressing credit
    quality subsequent to completion of the project, makes no comment on the
    likelihood of, or the risk of default upon failure of, such completion. The
    investor should exercise his own judgement with respect to such likelihood
    and risk.

    Under present commercial bank regulations issued by the Comptroller of the
    Currency, bonds rated in the top four categories ("AAA", "AA", "A", and
    "BBB", commonly known as "investment-grade" ratings) are generally regarded
    as eligible for bank investment.

    MOODY'S.: The four highest ratings of Moody's and their meanings are:

        "AAA"   Bonds which are rated "Aaa" are judged to be of the best
                quality. They carry the smallest degree of investment risk and
                are generally referred to as "gilt edge." Interest payments are
                protected by a large or by an exceptionally stable margin and
                principal is secure. While the various protective elements are
                likely to change, such changes as can be visualized are most
                unlikely to impair the fundamentally strong position of such
                issues.

        "AA"    Bonds which are rated "Aa" are judged to be of high quality by
                all standards. Together with the "Aaa" group they comprise what
                are generally known as high-grade bonds. They are rated lower
                then the best bonds because margins of protection may not be as
                large as in "Aaa" securities or fluctuation of protective
                elements may be of greater amplitude or there may be other
                elements present which make the long-term risks appear somewhat
                larger than in "Aaa" securities.

        "A"     Bonds which are rated "A" possess many favorable investment
                attributes and are to be considered as upper medium-grade
                obligations. Factors giving security to principal and interest
                are considered adequate, but elements may be present which
                suggest a susceptibility to impairment sometime in the future.

        "BAA"   Bonds which are rated "Baa" are considered as medium-grade
                obligations; i.e., they are neither highly protected nor poorly
                secured. Interest payments and principal security appear
                adequate for the present but certain protective elements may be
                lacking or may be characteristically unreliable over any great
                length of time. Such bonds lack outstanding investment
                characteristics and in fact have speculative characteristics as
                well.



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