QUERYOBJECT SYSTEMS CORP
SC 13D/A, 1999-01-19
PREPACKAGED SOFTWARE
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                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

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

                                  SCHEDULE 13D
                                 (Rule 13d-101)

                 INFORMATION TO BE INCLUDED IN STATEMENTS FILED
                    PURSUANT TO RULE 13d-1(a) AND AMENDMENTS
                     THERETO FILED PURSUANT TO RULE 13d-2(a)

                              (Amendment No. 5)(1)

                         QUERYOBJECT SYSTEMS CORPORATION
- --------------------------------------------------------------------------------
                                (Name of issuer)

                                  COMMON STOCK
- --------------------------------------------------------------------------------
                         (Title of class of securities)

                                  74833H 10 0
- --------------------------------------------------------------------------------
                                 (CUSIP number)

                              STEVEN WOLOSKY, ESQ.
                 OLSHAN GRUNDMAN FROME ROSENZWEIG & WOLOSKY LLP
                                 505 Park Avenue
                            New York, New York 10022
                                 (212) 753-7200
- --------------------------------------------------------------------------------
                  (Name, address and telephone number of person
                authorized to receive notices and communications)

                               December 10, 1998
- --------------------------------------------------------------------------------
             (Date of event which requires filing of this statement)

         If the filing person has  previously  filed a statement on Schedule 13G
to report the  acquisition  that is the  subject of this  Schedule  13D,  and is
filing this schedule because of Rule 13d-1(e),  13d-1(f) or 13d-1(g),  check the
following box / /.

         Note.  The  Schedules  filed in paper  format  shall  include  a signed
original  and five copies of the  schedule,  including  all  exhibits.  See Rule
13d-7(b) for other parties to whom copies are to be sent.

                         (Continued on following pages)

                              (Page 1 of 31 Pages)



- --------
   (1) The  remainder  of this cover  page  shall be filled out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

                  The  information  required on the remainder of this cover page
shall  not be  deemed  to be  "filed"  for  the  purpose  of  Section  18 of the
Securities  Exchange Act of 1934 or otherwise subject to the liabilities of that
section  of the Act but  shall be  subject  to all other  provisions  of the Act
(however, see the Notes).
<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D          Page 2 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                  Wheatley Partners, L.P.
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                         WC, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware
- --------------------------------------------------------------------------------
 NUMBER OF           7     SOLE VOTING POWER
   SHARES
BENEFICIALLY                     4,162,123(1) shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                    8      SHARED VOTING POWER
                
                                 353,571(2) shares
                ----------------------------------------------------------------
                    9      SOLE DISPOSITIVE POWER

                                 4,162,123(1) shares
                ----------------------------------------------------------------
                   10      SHARED DISPOSITIVE POWER

                                 353,571(2) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      4,515,694(1)(2) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      50.0%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Includes (i) 1,385,879 shares of Common Stock issuable upon exercise of
         warrants  and (ii)  2,208,000  shares of  Common  Stock  issuable  upon
         conversion  of shares  of Series A  Preferred  Stock  held by  Wheatley
         Partners, L.P.
(2)      Includes (i) 120,371  shares of Common Stock  issuable upon exercise of
         warrants  and  (ii)  192,000  shares  of  Common  Stock  issuable  upon
         conversion  of shares  of Series A  Preferred  Stock  held by  Wheatley
         Foreign  Partners,  L.P., of which Wheatley  Partners,  L.P.  disclaims
         beneficial ownership.

<PAGE>


- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D          Page 3 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                      Barry Rubenstein
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY
- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                         PF, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                         United States
- --------------------------------------------------------------------------------
 NUMBER OF          7         SOLE VOTING POWER
   SHARES
BENEFICIALLY                        381,250(1) shares
  OWNED BY      ---------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                    8         SHARED VOTING POWER

                                    5,563,006(2) shares
                ----------------------------------------------------------------
                    9         SOLE DISPOSITIVE POWER

                                    381,250(1) shares
                ----------------------------------------------------------------
                   10         SHARED DISPOSITIVE POWER

                                    5,563,006(2) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      5,944,256(1)(2) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      58.3%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Consists of (i) 56,250 shares of Common Stock issuable upon exercise of
         options,  (ii) 125,000 shares of Common Stock issuable upon exercise of
         warrants  and  (iii)  200,000  shares  of Common  Stock  issuable  upon
         conversion  of  shares  of  Series  A  Preferred   Stock  held  by  Mr.
         Rubenstein.


<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D          Page 4 of 31 Pages
- ---------------------------------                 ------------------------------



(2)      Includes  (a) 3,125 shares of Common Stock  issuable  upon  exercise of
         warrants held by Woodland  Partners,  (b)(i)  115,625  shares of Common
         Stock issuable upon exercise of warrants, (ii) 100,000 shares of Common
         Stock  issuable upon  conversion of shares of Series A Preferred  Stock
         and (iii) 80,000  shares of Common Stock  issuable  upon  conversion of
         shares of Series B  Preferred  Stock,  all of which is held by Woodland
         Venture  Fund,  (c)(i)  115,625  shares of Common Stock  issuable  upon
         exercise of warrants, (ii) 100,000 shares of Common Stock issuable upon
         conversion  of  shares  of Series A  Preferred  Stock and (iii)  80,000
         shares of Common Stock  issuable upon  conversion of shares of Series B
         Preferred  Stock,  all of  which  is held by  Seneca  Ventures,  (d)(i)
         1,385,879 shares of Common Stock issuable upon exercise of warrants and
         (ii)  2,208,000  shares of Common Stock  issuable  upon  conversion  of
         shares of Series A  Preferred  Stock,  all of which is held by Wheatley
         Partners,  L.P.,  (e)(i)  120,371  shares of Common Stock issuable upon
         exercise of warrants and (ii) 192,000  shares of Common Stock  issuable
         upon conversion of shares of Series A Preferred  Stock, all of which is
         held by Wheatley  Foreign  Partners,  L.P.,  and (f) 200,000  shares of
         Common  Stock  issuable  upon  exercise  of  options  held by  Rev-Wood
         Merchant Partners. Mr. Rubenstein disclaims beneficial ownership of the
         securities held by Woodland  Partners,  Woodland  Venture Fund,  Seneca
         Ventures,  Wheatley Partners, L.P., Wheatley Foreign Partners, L.P. and
         Rev- Wood  Merchant  Partners,  except to the extent of his  respective
         equity interest therein.


<PAGE>


- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D          Page 5 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================

      1         NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                                        Irwin Lieber
- --------------------------------------------------------------------------------
      2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
      3         SEC USE ONLY

- --------------------------------------------------------------------------------
      4         SOURCE OF FUNDS*
                      OO
- --------------------------------------------------------------------------------
      5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
      6         CITIZENSHIP OR PLACE OF ORGANIZATION

                      United States
- --------------------------------------------------------------------------------
  NUMBER OF         7         SOLE VOTING POWER
    SHARES
 BENEFICIALLY                       56,250(1) shares
   OWNED BY     ----------------------------------------------------------------
     EACH
  REPORTING
 PERSON WITH
                    8         SHARED VOTING POWER

                                    4,515,694(2) shares
                ----------------------------------------------------------------
                    9 SOLE DISPOSITIVE POWER

                                    56,250(1) shares
                ----------------------------------------------------------------
                   10 SHARED DISPOSITIVE POWER

                                    4,515,694(2) shares
- --------------------------------------------------------------------------------
      11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      4,571,944(1)(2) shares
- --------------------------------------------------------------------------------
      12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
      13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      50.3%
- --------------------------------------------------------------------------------
      14        TYPE OF REPORTING PERSON*

                      IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Consists of 56,250  shares of Common Stock  issuable  upon  exercise of
         options held by Mr. Lieber.

(2)      Includes (a)(i) 1,385,879 shares of Common Stock issuable upon exercise
         of warrants and (ii)  2,208,000  shares of Common Stock  issuable  upon
         conversion of shares of Series A Preferred  Stock, all of which is held
         by Wheatley  Partners,  L.P., and (b)(i) 120,371 shares of Common Stock
         issuable upon
<PAGE>



- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D          Page 6 of 31 Pages
- ---------------------------------                 ------------------------------



         exercise of warrants and (ii) 192,000  shares of Common Stock  issuable
         upon conversion of shares of Series A Preferred  Stock, all of which is
         held by Wheatley Foreign Partners,  L.P., of which Mr. Lieber disclaims
         beneficial  ownership,  except to the extent of his  respective  equity
         interest therein.


<PAGE>



- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D          Page 7 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                       Barry Fingerhut
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                      OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      United States
- --------------------------------------------------------------------------------
 NUMBER OF          7     SOLE VOTING POWER
   SHARES
BENEFICIALLY                    0 shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                    8     SHARED VOTING POWER

                                4,515,694(1) shares
                ----------------------------------------------------------------
                    9     SOLE DISPOSITIVE POWER

                                0 shares
                ----------------------------------------------------------------
                   10     SHARED DISPOSITIVE POWER

                                4,515,694(1) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      4,515,694(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      50.0%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
(1)      Includes (a)(i) 1,385,879 shares of Common Stock issuable upon exercise
         of warrants and (ii)  2,208,000  shares of Common Stock  issuable  upon
         conversion of shares of Series A Preferred  Stock, all of which is held
         by Wheatley  Partners,  L.P., and (b)(i) 120,371 shares of Common Stock
         issuable  upon  exercise of warrants and (ii) 192,000  shares of Common
         Stock issuable upon  conversion of shares of Series A Preferred  Stock,
         all of which is held by Wheatley Foreign  Partners,  L.P., of which Mr.
         Fingerhut disclaims beneficial  ownership,  except to the extent of his
         respective equity interest therein.


<PAGE>


- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D          Page 8 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                   Wheatley Partners, LLC
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                         WC, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware
- --------------------------------------------------------------------------------
 NUMBER OF          7     SOLE VOTING POWER
   SHARES
BENEFICIALLY                    0 shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                    8     SHARED VOTING POWER

                                4,515,694(1) shares
                ----------------------------------------------------------------
                    9     SOLE DISPOSITIVE POWER

                                0 shares
                ----------------------------------------------------------------
                   10     SHARED DISPOSITIVE POWER

                                4,515,694(1) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      4,515,694(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      50.0%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      OO
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
(1)      Includes (a)(i) 1,385,879 shares of Common Stock issuable upon exercise
         of warrants and (ii)  2,208,000  shares of Common Stock  issuable  upon
         conversion of shares of Series A Preferred  Stock, all of which is held
         by Wheatley  Partners,  L.P., and (b)(i) 120,371 shares of Common Stock
         issuable  upon  exercise of warrants and (ii) 192,000  shares of Common
         Stock issuable upon  conversion of shares of Series A Preferred  Stock,
         all of which  is held by  Wheatley  Foreign  Partners,  L.P.,  of which
         Wheatley Partners,  LLC disclaims beneficial  ownership,  except to the
         extent of its respective equity interest therein.

<PAGE>


- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D          Page 9 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                        Seth Lieber
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                         OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      United States
- --------------------------------------------------------------------------------
 NUMBER OF        7         SOLE VOTING POWER
   SHARES
BENEFICIALLY                      2,084(1) shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                  8         SHARED VOTING POWER

                                  4,515,694(2) shares
                ----------------------------------------------------------------
                  9         SOLE DISPOSITIVE POWER

                                  2,084(1) shares
                ----------------------------------------------------------------
                 10         SHARED DISPOSITIVE POWER

                                  4,515,694(2) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      4,517,778(1)(2) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      50.0%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Consists of 2,084  shares of Common  Stock  issuable  upon  exercise of
         options held by Mr. Lieber.
(2)      Includes (a)(i) 1,385,879 shares of Common Stock issuable upon exercise
         of warrants and (ii)  2,208,000  shares of Common Stock  issuable  upon
         conversion of shares of Series A Preferred  Stock, all of which is held
         by Wheatley  Partners,  L.P., and (b)(i) 120,371 shares of Common Stock
         issuable upon


<PAGE>


- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 10 of 31 Pages
- ---------------------------------                 ------------------------------


         exercise of warrants and (ii) 192,000  shares of Common Stock  issuable
         upon conversion of shares of Series A Preferred  Stock, all of which is
         held by Wheatley Foreign Partners,  L.P., of which Mr. Lieber disclaims
         beneficial  ownership,  except to the extent of his  respective  equity
         interest therein.


<PAGE>



- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 11 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
      1         NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                      Jonathan Lieber
- --------------------------------------------------------------------------------
      2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
      3         SEC USE ONLY

- --------------------------------------------------------------------------------
      4         SOURCE OF FUNDS*
                      OO
- --------------------------------------------------------------------------------
      5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
      6         CITIZENSHIP OR PLACE OF ORGANIZATION

                      United States
- --------------------------------------------------------------------------------
  NUMBER OF         7      SOLE VOTING POWER
    SHARES
 BENEFICIALLY                    2,084(1) shares
   OWNED BY     ----------------------------------------------------------------
     EACH
  REPORTING
 PERSON WITH
                    8      SHARED VOTING POWER

                                 4,515,694(2) shares
                ----------------------------------------------------------------
                    9      SOLE DISPOSITIVE POWER

                                 2,084(1) shares
                ----------------------------------------------------------------
                   10      SHARED DISPOSITIVE POWER

                                 4,515,694(2) shares
- --------------------------------------------------------------------------------
      11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      4,517,778(1)(2) shares
- --------------------------------------------------------------------------------
      12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
      13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      50.0%
- --------------------------------------------------------------------------------
      14        TYPE OF REPORTING PERSON*

                      IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Consists of 2,084  shares of Common  Stock  issuable  upon  exercise of
         options held by Mr. Lieber.
(2)      Includes (a)(i) 1,385,879 shares of Common Stock issuable upon exercise
         of warrants and (ii)  2,208,000  shares of Common Stock  issuable  upon
         conversion of shares of Series A Preferred  Stock, all of which is held
         by Wheatley  Partners,  L.P., and (b)(i) 120,371 shares of Common Stock
         issuable upon


<PAGE>


- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 12 of 31 Pages
- ---------------------------------                 ------------------------------


         exercise of warrants and (ii) 192,000  shares of Common Stock  issuable
         upon conversion of shares of Series A Preferred  Stock, all of which is
         held by Wheatley Foreign Partners,  L.P., of which Mr. Lieber disclaims
         beneficial  ownership,  except to the extent of his  respective  equity
         interest therein.


<PAGE>


- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 13 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================

     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                  Wheatley Management Ltd.
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                      WC, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      Cayman Islands, B.W.I.
- --------------------------------------------------------------------------------
 NUMBER OF          7       SOLE VOTING POWER
   SHARES
BENEFICIALLY                      0 shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                    8       SHARED VOTING POWER

                                  353,571(1) shares
                ----------------------------------------------------------------
                    9       SOLE DISPOSITIVE POWER

                                  0 shares
                ----------------------------------------------------------------
                   10       SHARED DISPOSITIVE POWER

                                  353,571(1) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      353,571(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      6.5%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      OO
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Includes (i) 120,371  shares of Common Stock  issuable upon exercise of
         warrants  and  (ii)  192,000  shares  of  Common  Stock  issuable  upon
         conversion  of shares  of Series A  Preferred  Stock  held by  Wheatley
         Foreign  Partners,  L.P., of which Wheatley  Management Ltd.  disclaims
         beneficial  ownership,  except  to the  extent of its  equity  interest
         therein.


<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 14 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                              Wheatley Foreign Partners, L.P.
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                         WC, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware
- --------------------------------------------------------------------------------
 NUMBER OF        7         SOLE VOTING POWER
   SHARES
BENEFICIALLY                      353,571(1) shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                  8         SHARED VOTING POWER

                                  4,162,123(2) shares
                ----------------------------------------------------------------
                  9         SOLE DISPOSITIVE POWER

                                  353,571(1) shares
                ----------------------------------------------------------------
                 10         SHARED DISPOSITIVE POWER

                                  4,162,123(2) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      4,515,694(1)(2) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      50.0%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Includes (i) 120,371  shares of Common Stock  issuable upon exercise of
         warrants  and  (ii)  192,000  shares  of  Common  Stock  issuable  upon
         conversion  of shares  of Series A  Preferred  Stock  held by  Wheatley
         Foreign Partners, L.P.
(2)      Includes (i) 1,385,879 shares of Common Stock issuable upon exercise of
         warrants  and (ii)  2,208,000  shares of  Common  Stock  issuable  upon
         conversion  of shares of Series A  Preferred  Stock is held by Wheatley
         Partners,  L.P., of which Wheatley  Foreign  Partners,  L.P.  disclaims
         beneficial ownership.

<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 15 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                       Seneca Ventures
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                      WC, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      New York
- --------------------------------------------------------------------------------
 NUMBER OF        7         SOLE VOTING POWER
   SHARES
BENEFICIALLY                        336,106(1) shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                  8         SHARED VOTING POWER

                                    0 shares
                ----------------------------------------------------------------
                  9         SOLE DISPOSITIVE POWER

                                    336,106(1) shares
                ----------------------------------------------------------------
                 10         SHARED DISPOSITIVE POWER

                                    0 shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      336,106(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      6.2%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Includes (i) 115,625  shares of Common Stock  issuable upon exercise of
         warrants,  (ii) 100,000 shares of Common Stock issuable upon conversion
         of shares of Series A Preferred Stock and (iii) 80,000 shares of Common
         Stock  issuable upon  conversion of shares of Series B Preferred  Stock
         held by Seneca Ventures.


<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 16 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                    Woodland Venture Fund
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                         WC, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      New York
- --------------------------------------------------------------------------------
 NUMBER OF         7        SOLE VOTING POWER
   SHARES
BENEFICIALLY                      349,600(1) shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                   8        SHARED VOTING POWER

                                  0 shares
                ----------------------------------------------------------------
                   9        SOLE DISPOSITIVE POWER

                                  349,600(1) shares
                ----------------------------------------------------------------
                  10        SHARED DISPOSITIVE POWER

                                  0 shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      349,600(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      6.5%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Includes (i) 115,625  shares of Common Stock  issuable upon exercise of
         warrants,  (ii) 100,000 shares of Common Stock issuable upon conversion
         of shares of Series A Preferred Stock and (iii) 80,000 shares of Common
         Stock  issuable upon  conversion of shares of Series B Preferred  Stock
         held by Woodland Venture Fund.


<PAGE>


- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 17 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                     Woodland Partners
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                         WC, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      New York
- --------------------------------------------------------------------------------
 NUMBER OF        7         SOLE VOTING POWER
   SHARES
BENEFICIALLY                      161,606(1) shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                  8         SHARED VOTING POWER

                                  0 shares
                ----------------------------------------------------------------
                  9         SOLE DISPOSITIVE POWER

                                  161,606(1) shares
                ----------------------------------------------------------------
                 10         SHARED DISPOSITIVE POWER

                                  0 shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      161,606(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      3.2%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Includes  3,125  shares of  Common  Stock  issuable  upon  exercise  of
         warrants held by Woodland Partners.


<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 18 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                  Rev-Wood Merchant Partners
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                      OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      New York
- --------------------------------------------------------------------------------
 NUMBER OF        7         SOLE VOTING POWER
   SHARES
BENEFICIALLY                      200,000(1) shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                  8         SHARED VOTING POWER

                                  0
                ----------------------------------------------------------------
                  9         SOLE DISPOSITIVE POWER

                                  200,000(1) shares
                ----------------------------------------------------------------
                 10         SHARED DISPOSITIVE POWER

                                  0
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      200,000(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      3.8%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      PN
================================================================================

                 *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Consists of 200,000  shares of Common Stock  issuable  upon exercise of
         options held by Rev-Wood Merchant Partners.


<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 19 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                     Marilyn Rubenstein
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY

- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                         OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      United States
- --------------------------------------------------------------------------------
 NUMBER OF        7         SOLE VOTING POWER
   SHARES
BENEFICIALLY                      0 shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                  8         SHARED VOTING POWER

                                  847,312(1) shares
                ----------------------------------------------------------------
                  9         SOLE DISPOSITIVE POWER

                                  0 shares
                ----------------------------------------------------------------
                 10         SHARED DISPOSITIVE POWER

                                  847,312(1) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      847,312(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      14.8%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Includes  (a) 3,125 shares of Common Stock  issuable  upon  exercise of
         warrants held by Woodland  Partners,  (b)(i)  115,625  shares of Common
         Stock issuable upon exercise of warrants, (ii) 100,000 shares of Common
         Stock  issuable upon  conversion of shares of Series A Preferred  Stock
         and (iii) 80,000  shares of Common Stock  issuable  upon  conversion of
         shares of Series B  Preferred  Stock,  all of which is held by Woodland
         Venture Fund, and (c)(i) 115,625 shares of


<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 20 of 31 Pages
- ---------------------------------                 ------------------------------



         Common Stock issuable upon exercise of warrants, (ii) 100,000 shares of
         Common Stock  issuable upon  conversion of shares of Series A Preferred
         Stock and (iii) 80,000 shares of Common Stock issuable upon  conversion
         of shares of Series B Preferred  Stock,  all of which is held by Seneca
         Ventures.   Mrs.  Rubenstein  disclaims  beneficial  ownership  of  the
         securities held by Woodland Partners,  Woodland Venture Fund and Seneca
         Ventures,  except  to the  extent  of her  respective  equity  interest
         therein.  Does not include  securities  held by Barry  Rubenstein,  the
         husband of Marilyn Rubenstein.


<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 21 of 31 Pages
- ---------------------------------                 ------------------------------


================================================================================
     1          NAME OF REPORTING PERSONS
                I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                  Woodland Services Corp.
- --------------------------------------------------------------------------------
     2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3          SEC USE ONLY
- --------------------------------------------------------------------------------
     4          SOURCE OF FUNDS*
                      WC, OO
- --------------------------------------------------------------------------------
     5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEM 2(d) OR 2(e)                                / /
- --------------------------------------------------------------------------------
     6          CITIZENSHIP OR PLACE OF ORGANIZATION

                      New York
- --------------------------------------------------------------------------------
 NUMBER OF        7         SOLE VOTING POWER
   SHARES
BENEFICIALLY                      0 shares
  OWNED BY      ----------------------------------------------------------------
    EACH
 REPORTING
PERSON WITH
                  8         SHARED VOTING POWER

                                  685,706(1) shares
                ----------------------------------------------------------------
                  9         SOLE DISPOSITIVE POWER

                                  0 shares
                ----------------------------------------------------------------
                 10         SHARED DISPOSITIVE POWER

                                  685,706(1) shares
- --------------------------------------------------------------------------------
     11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                PERSON

                      685,706(1) shares
- --------------------------------------------------------------------------------
     12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                CERTAIN SHARES*                                              / /
- --------------------------------------------------------------------------------
     13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      12.0%
- --------------------------------------------------------------------------------
     14         TYPE OF REPORTING PERSON*

                      CO
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      Includes  (a)(i)  115,625 shares of Common Stock issuable upon exercise
         of  warrants,  (ii)  100,000  shares  of  Common  Stock  issuable  upon
         conversion  of  shares  of Series A  Preferred  Stock and (iii)  80,000
         shares of Common Stock  issuable upon  conversion of shares of Series B
         Preferred  Stock,  all of which is held by  Woodland  Venture  Fund and
         (b)(i)  115,625  shares of  Common  Stock  issuable  upon  exercise  of
         warrants, (ii) 100,000 shares of Common Stock

<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 22 of 31 Pages
- ---------------------------------                 ------------------------------


         issuable  upon  conversion  of shares of Series A  Preferred  Stock and
         (iii) 80,000 shares of Common Stock issuable upon  conversion of shares
         of Series B Preferred  Stock,  all of which is held by Seneca Ventures,
         of which Woodland Services Corp. disclaims beneficial ownership, except
         to the extent of its respective equity ownership therein.


<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 23 of 31 Pages
- ---------------------------------                 ------------------------------


                  The following  constitutes Amendment No. 5 to the Schedule 13D
filed by the undersigned (the "Schedule 13D"). Except as specifically amended by
this Amendment No. 5, the Schedule 13D remains in full force and effect.

                  Item 3 is amended to include the following:

Item 3.  Source and Amount of Funds or Other Consideration.

                  On December 10, 1998,  Barry  Rubenstein,  Wheatley,  Wheatley
Foreign,  Seneca and Woodland  Fund  acquired in the third  tranche of a private
placement  transaction  (the  "Series  A  Offering")  (i)  shares  of  Series  A
Convertible  Preferred  Stock,  $.001 par value per share  ("Series A  Preferred
Stock"), that are immediately  convertible into 18,000,  198,720,  17,280, 9,000
and 9,000 shares of Common  Stock,  respectively,  and (ii) warrants to purchase
shares of Common Stock that are  immediately  exercisable  for 11,250,  124,200,
10,800, 5,625 and 5,625 shares of Common Stock, respectively. The purchase price
of  these   securities  was  $9,000,   $99,360,   $8,640,   $4,500  and  $4,500,
respectively.  Seneca and Woodland Fund also acquired in the second tranche of a
private  placement  transaction (the "Series B Offering") (i) shares of Series B
Convertible  Preferred  Stock,  $.001 par value per share  ("Series B  Preferred
Stock"),  that are  immediately  convertible  into  23,200 and 23,200  shares of
Common Stock, respectively, and (ii) warrants to purchase shares of Common Stock
that are  immediately  exercisable for 14,500 and 14,500 shares of Common Stock,
respectively.  The purchase  price of these  securities was $11,600 and $11,600,
respectively.  Mr.  Rubenstein  acquired these  securities with his personal and
other funds, and Wheatley,  Wheatley Foreign,  Seneca and Woodland Fund acquired
these securities with their respective working capital and other funds.

                  On December 21, 1998,  Barry  Rubenstein,  Wheatley,  Wheatley
Foreign,  Seneca and Woodland Fund acquired in the final tranche of the Series A
Offering (i) shares of Series A Preferred Stock that are immediately convertible
into  102,000,  1,126,080,  97,920,  51,000 and 51,000  shares of Common  Stock,
respectively,  and (ii)  warrants  to purchase  shares of Common  Stock that are
immediately exercisable for 63,750, 703,800, 61,200, 31,875 and 31,875 shares of
Common Stock, respectively.  The purchase price of these securities was $51,000,
$563,040, $48,960, $25,500 and $25,500,  respectively.  Seneca and Woodland Fund
also acquired in the final tranche of the Series B Offering (i) shares of Series
B Preferred Stock that are immediately convertible into 40,800 and 40,800 shares
of Common Stock  respectively,  and (ii)  warrants to purchase  shares of Common
Stock that are  immediately  exercisable  for 25,500 and 25,500 shares of Common
Stock,  respectively.  The purchase  price of these  Securities  was $20,400 and
$20,400,  respectively.  Mr.  Rubenstein  acquired  these  securities  with  his
personal and other funds, and Wheatley,  Wheatley  Foreign,  Seneca and Woodland
Fund acquired these securities with their  respective  working capital and other
funds.

                  On December 31, 1998,  Wheatley and Wheatley  Foreign acquired
in  open  market  transactions   112,564  and  9,536  shares  of  Common  Stock,
respectively.  The purchase  price of these  securities was $140,581 and 11,900,
respectively. Wheatley and Wheatley Foreign acquired these securities with their
respective working capital and other funds.

                  Item 5(a) and (b) are hereby amended to read in their entirety
as follows:

<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 24 of 31 Pages
- ---------------------------------                 ------------------------------


Item 5.           Interest in Securities of the Issuer.

                  (a) The following  table sets forth the  aggregate  number and
percentage  (based on 5,121,422 shares of Common Stock outstanding as of October
31,  1998,  as  reported  by the  Issuer  in its Form 10Q for the  period  ended
September 30, 1998) of Common Stock  beneficially owned by each Reporting Person
named in Item 2 of Schedule 13D.


                                                               Percentage of
                                        Shares of Common      Shares of Common
                                             Stock                  Stock
Name                                   Beneficially Owned    Beneficially Owned
- ----                                   ------------------    ------------------
Wheatley Partners, L.P.(1)                 4,515,694              50.0%
Barry Rubenstein(2)                        5,944,256              58.3%
Irwin Lieber(3)                            4,571,944              50.3%
Barry Fingerhut(4)                         4,515,694              50.0%
Wheatley Partners, LLC(4)                  4,515,694              50.0%
Seth Lieber(4)(5)                          4,517,778              50.0%
Jonathan Lieber(4)(5)                      4,517,778              50.0%
Wheatley Management Ltd.(6)                  353,571               6.5%
Wheatley Foreign Partners, L.P.(7)         4,515,694              50.0%
Seneca Ventures(8)                           336,106               6.2%
Woodland Venture Fund(9)                     349,600               6.5%
Woodland Partners(10)                        161,606               3.2%
Rev-Wood Merchant Partners(11)               200,000               3.8%
Marilyn Rubenstein(12)                       847,312              14.8%
Woodland Services Corp.(13)                  685,706              12.0%


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

(1)      Includes (a)(i) 1,385,879 shares of Common Stock issuable upon exercise
         of warrants and (ii)  2,208,000  shares of Common Stock  issuable  upon
         conversion of shares of Series A Preferred  Stock, all of which is held
         by Wheatley,  and (b)(i)  120,371  shares of Common Stock issuable upon
         exercise of warrants and (ii) 192,000  shares of Common Stock  issuable
         upon conversion of shares of Series A Preferred  Stock, all of which is
         held by Wheatley Foreign.  Wheatley disclaims  beneficial  ownership of
         the securities held by Wheatley Foreign.

(2)      Includes (i) 56,250  shares of Common Stock  issuable  upon exercise of
         options,  (ii) 125,000 shares of Common Stock issuable upon exercise of
         warrants  and  (iii)  200,000  shares  of Common  Stock  issuable  upon
         conversion  of  shares  of  Series  A  Preferred   Stock  held  by  Mr.
         Rubenstein.  Also  includes (a) 3,125  shares of Common Stock  issuable
         upon exercise of warrants  held by Woodland  Partners,  (b)(i)  115,625
         shares of Common Stock issuable upon exercise of warrants, (ii) 100,000
         shares of Common Stock  issuable upon  conversion of shares of Series A
         Preferred  Stock and (iii) 80,000 shares of Common Stock  issuable upon
         conversion of shares of Series B Preferred  Stock, all of which is held
         by Woodland Fund, (c)(i) 115,625 shares of Common Stock issuable upon

<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 25 of 31 Pages
- ---------------------------------                 ------------------------------


         exercise of warrants, (ii) 100,000 shares of Common Stock issuable upon
         conversion  of  shares  of Series A  Preferred  Stock and (iii)  80,000
         shares of Common Stock  issuable upon  conversion of shares of Series B
         Preferred  Stock,  all of which  is held by  Seneca,  (d)(i)  1,385,879
         shares of Common  Stock  issuable  upon  exercise of warrants  and (ii)
         2,208,000  shares of Common Stock issuable upon conversion of shares of
         Series A  Preferred  Stock,  all of which is held by  Wheatley,  (e)(i)
         120,371  shares of Common Stock  issuable upon exercise of warrants and
         (ii) 192,000 shares of Common Stock issuable upon  conversion of shares
         of Series A Preferred Stock, all of which is held by Wheatley  Foreign,
         and (f)  200,000  shares of Common  Stock  issuable  upon  exercise  of
         options held by Rev-Wood. Mr. Rubenstein disclaims beneficial ownership
         of the securities  held by Woodland  Partners,  Woodland Fund,  Seneca,
         Wheatley,  Wheatley  Foreign and Rev-Wood,  except to the extent of his
         respective equity interest therein.

(3)      Includes  56,250  shares of Common  Stock  issuable  upon  exercise  of
         options held by Mr. Lieber.  Also includes (a)(i)  1,385,879  shares of
         Common Stock  issuable  upon  exercise of warrants  and (ii)  2,208,000
         shares of Common Stock  issuable upon  conversion of shares of Series A
         Preferred Stock,  all of which is held by Wheatley,  and (b)(i) 120,371
         shares of Common  Stock  issuable  upon  exercise of warrants  and (ii)
         192,000  shares of Common Stock  issuable upon  conversion of shares of
         Series A Preferred Stock, all of which is held by Wheatley Foreign,  of
         which Mr. Lieber disclaims beneficial  ownership,  except to the extent
         of his respective equity interest therein.

(4)      Includes (a)(i) 1,385,879 shares of Common Stock issuable upon exercise
         of warrants and (ii)  2,208,000  shares of Common Stock  issuable  upon
         conversion of shares of Series A Preferred  Stock, all of which is held
         by Wheatley,  and (b)(i)  120,371  shares of Common Stock issuable upon
         exercise of warrants and (ii) 192,000  shares of Common Stock  issuable
         upon conversion of shares of Series A Preferred  Stock, all of which is
         held by Wheatley  Foreign.  The Reporting Person  disclaims  beneficial
         ownership of these securities except to the extent of his or its equity
         respective ownership in Wheatley and/or Wheatley Foreign.

(5)      Includes 2,084 shares of Common Stock issuable upon exercise of options
         held by Mr. Lieber.

(6)      Includes (i) 120,371  shares of Common Stock  issuable upon exercise of
         warrants  and  (ii)  192,000  shares  of  Common  Stock  issuable  upon
         conversion  of shares  of Series A  Preferred  Stock  held by  Wheatley
         Foreign, of which Wheatley Management disclaims  beneficial  ownership,
         except to the extent of its equity interest therein.

(7)      Includes (a)(i) 1,385,879 shares of Common Stock issuable upon exercise
         of warrants and (ii)  2,208,000  shares of Common Stock  issuable  upon
         conversion of shares of Series A Preferred  Stock, all of which is held
         by Wheatley,  and (b)(i)  120,371  shares of Common Stock issuable upon
         exercise of warrants and (ii) 192,000  shares of Common Stock  issuable
         upon conversion of shares of Series A Preferred  Stock, all of which is
         held  by  Wheatley  Foreign.   Wheatley  Foreign  disclaims  beneficial
         ownership of the securities held by Wheatley.

(8)      Includes (i) 115,625  shares of Common Stock  issuable upon exercise of
         warrants,  (ii) 100,000 shares of Common Stock issuable upon conversion
         of shares of Series A Preferred Stock and (iii) 80,000 shares of Common
         Stock issuable upon  conversion of shares of Series B Preferred  Stock,
         held by Seneca.

(9)      Includes (i) 115,625  shares of Common Stock  issuable upon exercise of
         warrants,  (ii) 100,000 shares of Common Stock issuable upon conversion
         of shares of Series A Preferred Stock and (iii) 80,000 shares of Common
         Stock issuable upon  conversion of shares of Series B Preferred  Stock,
         held by Woodland Fund.

<PAGE>

- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 26 of 31 Pages
- ---------------------------------                 ------------------------------


(10)     Includes  3,125  shares of  Common  Stock  issuable  upon  exercise  of
         warrants held by Woodland Partners.

(11)     Consists of 200,000  shares of Common Stock  issuable  upon exercise of
         options held by Rev-Wood.

(12)     Includes  (a) 3,125 shares of Common Stock  issuable  upon  exercise of
         warrants held by Woodland  Partners,  (b)(i)  115,625  shares of Common
         Stock issuable upon exercise of warrants, (ii) 100,000 shares of Common
         Stock  issuable upon  conversion of shares of Series A Preferred  Stock
         and (iii) 80,000  shares of Common Stock  issuable  upon  conversion of
         shares of Series B  Preferred  Stock,  all of which is held by Woodland
         Fund,  and (c)(i) 115,625 shares of Common Stock issuable upon exercise
         of  warrants,  (ii)  100,000  shares  of  Common  Stock  issuable  upon
         conversion  of  shares  of Series A  Preferred  Stock and (iii)  80,000
         shares of Common Stock  issuable upon  conversion of shares of Series B
         Preferred  Stock,  all of  which  is held by  Seneca.  Mrs.  Rubenstein
         disclaims  beneficial  ownership  of the  securities  held by  Woodland
         Partners,  Woodland  Fund  and  Seneca,  except  to the  extent  of her
         respective equity interest therein. Does not include securities held by
         Barry Rubenstein, the husband of Marilyn Rubenstein.

(13)     Includes  (a)(i)  115,625 shares of Common Stock issuable upon exercise
         of  warrants,  (ii)  100,000  shares  of  Common  Stock  issuable  upon
         conversion  of  shares  of Series A  Preferred  Stock and (iii)  80,000
         shares of Common Stock  issuable upon  conversion of shares of Series B
         Preferred  Stock,  all of which is held by  Woodland  Fund,  and (b)(i)
         115,625 shares of Common Stock issuable upon exercise of warrants, (ii)
         100,000  shares of Common Stock  issuable upon  conversion of shares of
         Series A  Preferred  Stock and  (iii)  80,000  shares  of Common  Stock
         issuable upon conversion of shares of Series B Preferred  Stock, all of
         which is held by Seneca,  of which Woodland  Services  Corp.  disclaims
         beneficial  ownership,  except to the extent of its  respective  equity
         ownership therein.

                  (b)  Wheatley  has sole power to vote and dispose of 4,162,123
shares of Common  Stock,  representing  approximately  47.8% of the  outstanding
shares of  Common  Stock  and may be  deemed  to have  shared  power to vote and
dispose of 353,571 shares of Common Stock,  representing  approximately  6.5% of
the outstanding shares of Common Stock.

                  By virtue of being  the  general  partner  of  Wheatley  and a
general partner of Wheatley  Foreign,  Wheatley LLC may be deemed to have shared
power to vote and  dispose of  4,515,694  shares of Common  Stock,  representing
approximately 50.0% of the outstanding shares of Common Stock.

                  Seth Lieber and  Jonathan  Lieber each have sole power to vote
and dispose of 2,084 shares of Common  Stock upon the exercise of options,  each
representing  less than 1% of the outstanding  shares of Common Stock. By virtue
of being a member  and an  officer  of  Wheatley  LLC,  each of Seth  Lieber and
Jonathan  Lieber  may be  deemed to have  shared  power to vote and  dispose  of
4,515,694  shares  of  Common  Stock,  representing  approximately  50.0% of the
outstanding shares of Common Stock.

                  Barry Rubenstein has sole power to vote and dispose of 381,250
shares of Common Stock upon the exercise of options and  warrants,  representing
approximately 6.9% of the outstanding shares of Common Stock. By virtue of being
a member  and an  officer  of  Wheatley  LLC and a general  partner  of  Seneca,
Woodland Partners,  Woodland Fund and Rev-Wood,  Mr. Rubenstein may be deemed to
have  shared  power to vote and  dispose of  5,563,006  shares of Common  Stock,
representing approximately 56.6% of the outstanding shares of Common Stock.

                  Irwin  Lieber  has sole  power to vote and  dispose  of 56,250
shares of Common Stock upon the exercise of options,  representing approximately
1.1% of the outstanding  shares of Common Stock. By virtue of being a member and
an officer of Wheatley  LLC,  Irwin Lieber may be deemed to have shared power to
vote and dispose of 4,515,694 shares of Common Stock, representing approximately
50.0% of the outstanding shares of Common Stock.

<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 27 of 31 Pages
- ---------------------------------                 ------------------------------


                  By virtue of being a member and an officer  of  Wheatley  LLC,
Barry  Fingerhut  may be  deemed to have  shared  power to vote and  dispose  of
4,515,694  shares  of  Common  Stock,  representing  approximately  50.0% of the
outstanding shares of Common Stock.

                  Wheatley Foreign has sole power to vote and dispose of 353,571
shares of Common Stock representing approximately 6.5% of the outstanding shares
of Common  Stock and may be deemed to have  shared  power to vote and dispose of
4,162,123  shares  of  Common  Stock,  representing  approximately  47.8% of the
outstanding shares of Common Stock.

                  By virtue  of being a general  partner  of  Wheatley  Foreign,
Wheatley  Management  may be deemed to have shared  power to vote and dispose of
353,571  shares  of  Common  Stock,  representing   approximately  6.5%  of  the
outstanding shares of Common Stock.

                  Seneca has sole power to vote and dispose of 336,106 shares of
Common Stock representing approximately 6.2% of the outstanding shares of Common
Stock.

                  Woodland  Fund has sole  power to vote and  dispose of 349,600
shares of Common Stock representing approximately 6.5% of the outstanding shares
of Common Stock.

                  Woodland  Partners  has  sole  power to vote  and  dispose  of
161,606 shares of Common Stock  representing  3.2% of the outstanding  shares of
Common Stock.

                  Rev-Wood has sole power to vote and dispose of 200,000  shares
of Common Stock representing 3.8% of the outstanding shares of Common Stock.

                  By virtue of being a general partner of Woodland  Partners and
an officer of Woodland Services Corp.,  which is a general partner of Seneca and
Woodland Fund, Marilyn Rubenstein may be deemed to have shared power to vote and
dispose of 847,312 shares of Common Stock,  representing  approximately 14.8% of
the outstanding shares of Common Stock.

                  By virtue of being a general  partner of Seneca  and  Woodland
Fund,  Woodland  Services  Corp.  may be deemed to have shared power to vote and
dispose of 685,706 shares of Common Stock,  representing  approximately 12.0% of
the outstanding shares of Common Stock.

<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 28 of 31 Pages
- ---------------------------------                 ------------------------------


                  Item 5(c) is supplemented as follows:

                  (c)  The  following  table  sets  forth a  description  of all
transactions  in shares of Common Stock of the Issuer by the  Reporting  Persons
identified in Item 2 of this Schedule 13D effected since the filing of Amendment
No. 4 to the Schedule 13D.

                                                      Number of
                                      Purchase/        Shares
                                     Acquisition     Purchased/        Purchase
Name of Stockholder                     Date          Acquired          Price
- -------------------                     ----          --------          -----

Common Stock
Wheatley Partners, L.P.               12/31/98         112,564           1.2489
Wheatley Foreign Partners, L.P        12/31/98           9,536           1.2489

Series A Preferred Stock
Barry Rubenstein                      12/10/98          29,250(1)        2.00(2)
Wheatley Partners, L.P.               12/10/98         322,920(1)        2.00(2)
Wheatley Foreign Partners,
L.P.                                  12/10/98          28,080(1)        2.00(2)
Seneca Ventures                       12/10/98          14,625(1)        2.00(2)
Woodland Venture Fund                 12/10/98          14,625(1)        2.00(2)

Barry Rubenstein                      12/21/98         165,750(1)        2.00(2)
Wheatley Partners, L.P.               12/21/98       1,829,880(1)        2.00(2)
Wheatley Foreign Partners,
L.P.                                  12/21/98         159,120(1)        2.00(2)
Seneca Ventures                       12/21/98          82,875(1)        2.00(2)
Woodland Venture Fund                 12/21/98          82,875(1)        2.00(2)

Series B Preferred Stock
Seneca Ventures                       12/10/98          37,700(3)       10.00(4)
Woodland Venture Fund                 12/10/98          37,700(3)       10.00(4)

Seneca Ventures                       12/21/98          66,300(3)       10.00(4)
Woodland Venture Fund                 12/21/98          66,300(3)       10.00(4)

- -------------------
(1)      Represents shares of Common Stock issuable upon conversion of shares of
         Series A  Preferred  Stock and upon  exercise  of  warrants to purchase
         shares of Common Stock.

<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 29 of 31 Pages
- ---------------------------------                 ------------------------------


(2)      Represents  the per  unit  purchase  price,  exclusive  of the  warrant
         exercise  price.  Each unit was  comprised of (i) one share of Series A
         Preferred Stock (convertible into four shares of Common Stock) and (ii)
         a warrant to purchase 2.5 shares of Common  Stock at an exercise  price
         of $0.50 per share.

(3)      Represents shares of Common Stock issuable upon conversion of shares of
         Series B Preferred  Stock and upon the exercise of warrants to purchase
         shares of Common Stock.

(4)      Represents  the purchase  price for (i) one share of Series B Preferred
         Stock and (ii) five warrants to purchase an aggregate of 12.5 shares of
         Common Stock (2.5 shares per  warrant),  the  smallest  fraction of the
         unit that was offered by the Company, exclusive of the warrant exercise
         price.  Each full unit,  purchase price $100,000,  was comprised of (i)
         10,000 shares of Series B Preferred Stock (each share  convertible into
         20 shares of Common  Stock)  and (ii)  50,000  warrants  (each  warrant
         exercisable  for 2.5 shares of Common  Stock) at an  exercise  price of
         $0.50 per share.

                  The  securities set forth in the table above were purchased in
private  placement  transactions  from the  Issuer,  except for the open  market
purchases of Wheatley and Wheatley Foreign on December 31, 1998.


<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 30 of 31 Pages
- ---------------------------------                 ------------------------------


                                   SIGNATURES

                  After reasonable  inquiry and to the best of his knowledge and
belief, each of the undersigned certifies that the information set forth in this
statement is true, complete and correct.

Dated: January 15, 1999                     WHEATLEY PARTNERS, L.P.
                                            By: Wheatley Partners, LLC,
                                                        General Partner


                                            By: /s/ Barry Rubenstein
                                                ------------------------
                                                    Barry Rubenstein,
                                                    Chief Executive
                                                    Officer

                                            WHEATLEY PARTNERS, LLC


                                            By: /s/ Barry Rubenstein
                                                ------------------------
                                                     Barry Rubenstein,
                                                     Chief Executive
                                                     Officer


                                                /s/ Barry Rubenstein
                                            -------------------------------
                                                    Barry Rubenstein


                                                /s/ Irwin Lieber
                                             ------------------------------
                                                    Irwin Lieber


                                               /s/ Barry Fingerhut
                                             ------------------------------
                                                   Barry Fingerhut


                                               /s/ Seth Lieber
                                             ------------------------------
                                                   Seth Lieber


                                               /s/ Jonathan Lieber
                                             ------------------------------
                                                   Jonathan Lieber


<PAGE>
- ---------------------------------                 ------------------------------
CUSIP No. 74833H 10 0                    13D         Page 31 of 31 Pages
- ---------------------------------                 ------------------------------



                                          WHEATLEY MANAGEMENT LTD.


                                          By:  /s/ Irwin Lieber
                                               ------------------------------
                                                   Irwin Lieber, President


                                          WHEATLEY FOREIGN PARTNERS, L.P.
                                          By:  Wheatley Partners, LLC, a General
                                               Partner

                                          By:   /s/ Barry Rubenstein
                                                -------------------------------
                                                    Barry Rubenstein,
                                                    Chief Executive
                                                    Officer


                                          SENECA VENTURES

                                          By: /s/ Barry Rubenstein
                                              ---------------------------------
                                                  Barry Rubenstein,
                                                  a General Partner


                                          WOODLAND PARTNERS

                                          By: /s/ Barry Rubenstein
                                              ---------------------------------
                                                  Barry Rubenstein,
                                                  a General Partner


                                          WOODLAND VENTURE FUND

                                          By: /s/ Barry Rubenstein
                                              ----------------------------------
                                                  Barry Rubenstein,
                                                  a General Partner


                                          REV-WOOD MERCHANT PARTNERS

                                          By:  /s/ Barry Rubenstein
                                               ---------------------------------
                                                   Barry Rubenstein,
                                                   a General Partner


                                          By:  /s/ Marilyn Rubenstein
                                               ---------------------------------
                                                   Marilyn Rubenstein

                                          WOODLAND SERVICES CORP.

                                          By:  /s/ Barry Rubenstein
                                               ---------------------------------
                                                   Barry Rubenstein,
                                                   President



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