8-K

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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM 8-K

                CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934


        DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): MAY 3, 2000


                                MUSTANG.COM, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)




             CALIFORNIA                 0-25678               70-0204718
                                                     
  (STATE OR OTHER JURISDICTION      (COMMISSION FILE       (I.R.S. EMPLOYER
        OF INCORPORATION)               NUMBER)            IDENTIFICATION NO.)


6200 LAKE MING ROAD, BAKERSFIELD, CA                             93306
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                       (ZIP CODE)


REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE:  (661) 873-2500


          (FORMER NAME OR FORMER ADDRESS, IF CHANGED SINCE LAST REPORT)


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ITEM 5.  OTHER EVENTS

On May 3, 2000, Quintus Corporation filed a supplement under Rules 424(b)(3)
and 424(c) of the Securities Act of 1933, as amended, to the proxy
statement/prospectus dated April 11, 2000 relating to the proposed merger of
Registrant into a subsidiary of Quintus Corporation.

A copy of the supplement to the proxy statement/prospectus is attached hereto as
Exhibit 99.1 and is incorporated herein by reference.

ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

(c)     EXHIBITS.


99.1    Proxy Statement/Prospectus Supplement dated May 3, 2000.



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                                   SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.



                                         MUSTANG.COM, INC.


Date:  May 3, 2000                       By: /s/ DONALD M. LEONARD
                                            -----------------------------------
                                         Name:  Donald M. Leonard
                                         Title: Vice President of Finance and
                                                Chief Executive Officer

EX-99.1

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                                                                    EXHIBIT 99.1



SUPPLEMENT TO PROXY STATEMENT                         PROSPECTUS SUPPLEMENT

             OF                                                OF

      MUSTANG.COM, INC.                                 QUINTUS CORPORATION



        THE PROXY STATEMENT/PROSPECTUS DATED APRIL 11, 2000 RELATING TO A
PROPOSED TRANSACTION PURSUANT TO WHICH A SUBSIDIARY OF QUINTUS CORPORATION WILL
MERGE WITH MUSTANG.COM, INC. IS HEREBY SUPPLEMENTED TO INCLUDE THE FOLLOWING
INFORMATION:

        On April 19, 2000, Quintus announced its revenues for the fourth fiscal
quarter and fiscal year ended March 31, 2000. Revenues for the quarter were
$16.1 million, a 90% increase over revenues of $8.5 million in the fourth
quarter of fiscal year 1999. On a pro forma basis, excluding the impact of
acquisition-related charges and the amortization of deferred stock compensation
and adjusting for the inclusion of preferred shares prior to their conversion to
common stock, net loss from continuing operations for the quarter was $2.0
million or $(.06) per share, compared to $172,000 or $(.01) per share, for the
same period in fiscal 1999.

        For fiscal year 2000, Quintus' revenues were $51.7 million compared to
$30.3 million for the same period last year, an increase of 71%. Excluding the
impact of acquisition-related charges and the amortization of deferred stock
compensation and adjusting for the inclusion of preferred shares prior to their
conversion to common stock, net loss from continuing operations for the year was
$4.6 million or $(.18) per share, compared to $7.2 million or $(.38) per share,
for the same period in fiscal 1999.

        For the fourth fiscal quarter, including acquisition-related charges and
the amortization of deferred stock compensation, Quintus' net loss from
continuing operations for the quarter was $5.4 million, or $(.17) per share,
compared to a net loss of $1.0 million or $(.31) per share for the same period
last year. For the year ended March 31, 2000 on the same basis, net loss from
continuing operations was $15.9 million or $(1.10) per share, compared to $10.6
million or $(3.73) per share for the same period in fiscal 1999.

        Quintus also recently announced the appointment of Paul Bartlett as its
Chief Operating Officer and the appointment of Nancy Brumfield as its Chief
Marketing Officer. Mr. Bartlett will be responsible for Quintus' worldwide
sales, customer services and engineering activities. Ms. Brumfield will be
responsible for defining and implementing Quintus' marketing strategy. Quintus
also announced that John Burke, President, has left the company effective April
17, 2000.

        On April 19, 2000, Mustang.com, Inc. also announced its results for
its first quarter ended March 31, 2000. Mustang.com announced that its revenues
had increased 82% to $1,409,988 from $772,982 reported for the prior year
period. The net loss for the quarter was $244,525, or $(.04) per basic and
diluted share, as compared to the net income of $10,299, or $(.00) per basic and
diluted share, reported a year ago.

     THE DATE OF THIS PROXY STATEMENT/PROSPECTUS SUPPLEMENT IS MAY 3, 2000.