Document:

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                                                                  Exhibit 10.4.1

                                   MCSi, INC.
                          4750 HEMPSTEAD STATION DRIVE
                               DAYTON, OHIO 45429

                                  June 1, 2000

Joseph M. Savarino
President
Zengine, Inc.
6100 Stewart Avenue
Fremont, CA  95438

         Re:      Distribution Services Agreement

Dear Joe:

         Pursuant to Section 14(k) of the Distribution Services Agreement by and
between Miami Computer Supply Corporation (the corporate predecessor to MCSi,
Inc.) ("MCSi") and Zengine, Inc. ("Zengine"), dated as of October 1, 1999 (the
"Agreement"), the parties to the Agreement hereby agree to amend the Section 2
of the Agreement by adding a subsection (c), as follows:

                  "(c) On or before June 30, 2000, Zengine shall
                  pay to MCSi a 'set up' fee in order to prepare
                  space for Zengine at MCSi's new warehouse
                  facility in Erlanger, Kentucky in the amount of
                  30% of MCSi's April through June 2000 Erlanger
                  warehouse expenses less that portion of expenses
                  attributable to the FedEx project."

         Except as set forth above, the Agreement shall remain in full force and
effect pursuant to the terms and conditions thereof.

         Please signify your agreement to this amendment to the Agreement by
signing a copy of this letter in the space provided below and returning the copy
to me as soon as possible.

         Feel free to call me if you have any questions regarding this matter.

                                          Sincerely,

                                          /s/ Michael E. Peppel
                                          -----------------------
                                          Michael E. Peppel
                                          President and
                                          Chief Executive Officer

<PAGE>

Mr. Joseph Savarino
June 1, 2000
Page 2

         Agreed and accepted on June 1, 2000:

                                          ZENGINE, INC.

                                          By:   /s/ Joseph M. Savarino
                                                -----------------------
                                                   Joseph M. Savarino
                                                   President<PAGE>

                                                                  Exhibit 10.4.2

                                   MCSi, INC.
                          4750 HEMPSTEAD STATION DRIVE
                               DAYTON, OHIO 45429

                                 August 17, 2000

Joseph M. Savarino
President
Zengine, Inc.
6100 Stewart Avenue
Fremont, CA  95438

         Re:      Distribution Services Agreement

Dear Joe:

         Pursuant to Section 14(k) of the Distribution Services Agreement by and
between Miami Computer Supply Corporation (the corporate predecessor to MCSi,
Inc.) ("MCSi") and Zengine, Inc. ("Zengine"), dated as of October 1, 1999 (the
"Agreement") as amended on June 1, 2000, the parties to the Agreement hereby
agree to amend the Section 2 of the Agreement by deleting subsection (c) in its
entirety and replacing it with the following:

                  "(c) On or before the end of each fiscal
                  quarter through the term of the Distribution
                  Services Agreement, Zengine shall pay to MCSi
                  a fee for its use of MCSi's warehouse facility
                  in Erlanger, Kentucky ("Warehouse") in the amount
                  of the excess of 30% of the total gross expenses
                  of the Warehouse less the cost of the Warehouse
                  dedicated to the FedEx Project and less the amount
                  paid by Zengine to MCSi for the respective quarter
                  under other provisions of the Distribution Services
                  Agreement."

         Except as set forth above, the Agreement shall remain in full force and
effect pursuant to the terms and conditions thereof.

         Please signify your agreement to this amendment to the Agreement by
signing a copy of this letter in the space provided below and returning the copy
to me as soon as possible.

         Feel free to call me if you have any questions regarding this matter.

                                               Sincerely,

                                               /s/ Ira H. Stanley
                                               -------------------
                                               Ira H. Stanley
                                               Vice President and
                                               Chief Financial Officer

<PAGE>

         Agreed and accepted:

                                               ZENGINE, INC.

                                               By:  /s/ Louis Lipinski
                                                   ---------------------
                                                     Louis Lipinski
                                                     Chief Financial Officer

                                               Date: August 17, 2000<PAGE>

                                                               Exhibit 10.7.1

                              WILBLAIRCO ASSOCIATES
                              222 West Adams Street
                             Chicago, Illinois 60606

                                  April 6, 2000

Joseph M. Savarino
President
Zengine, Inc.
6100 Stewart Avenue
Fremont, California  94538

     Re: Amendment to Registration Rights Agreement

Dear Mr. Savarino:

     Pursuant to Section 13.1 of the Registration Rights Agreement by and among
Zengine, Inc. (the "Company"), At Home Corporation and other Investors and the
Founders dated September 30, 1999 (the "Agreement"), At Home Corporation hereby
agrees to the following amendments to the Agreement:

     1.   Section 1 - The definition of "Investors" shall be deleted in its
          entirety and replaced with:

               ""Investors" means At Home, Wilblairco and REX."

     2.   Section 1 - There shall be added after the definition of "Registrable
          Securities" and before the definition of "Rule 144" the following
          definition:

               ""REX" means rexstores.com, Inc., an Ohio corporation."

     3.   Section 1 - The definition of "Registrable Securities" shall be
          revised as follows:

               ""Registrable Securities" means (a) any shares of Common Stock
acquired by the Investors pursuant to that certain Stock Purchase Agreement of
even date herewith by and among the Company, Miami Computer Supply Corporation
and the Investors (the "Investors' Common Stock"); (b) any shares of Common
Stock acquired by an Investor who is added to this Agreement by amendment; (c)
any shares of Common Stock owned by a Founder on the date hereof or acquired by
a Founder upon exercise of an option to purchase Common Stock outstanding on the
date hereof (the "Founders' Common Stock") (the Investors' Common Stock and the
Founders' Common Stock are sometimes collectively referred to herein as the
"Holders' Common Stock"); (d) any shares of Common Stock which were issued as,
or were issued directly or indirectly upon the conversion of other securities
issued as, a dividend or other distribution with respect to, or in replacement
of, the Holders' Common Stock; and (e) any shares of Common Stock then issuable
directly or indirectly upon the conversion or exercise of other securities
issued as a dividend or other distribution with respect to, or in replacement
of, the Holders' Common Stock; PROVIDED, HOWEVER, that outstanding shares of
Common Stock shall no longer be Registrable Securities when they shall have been
(y) effectively registered under the Securities Act and sold by the holder
thereof in accordance with such registration, or (z) sold to the public pursuant
to Rule 144."

<PAGE>

Joseph M. Savarino
April 6, 2000
Page 2

     Please countersign this letter amendment and have rexstores.com, Inc.
execute the joinder agreement below and return an original copy of this
correspondence to me at your earliest convenience.

                              Sincerely,

                              WILBLAIRCO ASSOCIATES

                              By: /s/ Mark Brady
                                 ---------------------------------
                              Name: Mark Brady
                                   -------------------------------
                              Title: Partner
                                     -----------------------------

     Agreed and accepted this __ day of ____________, 2000.

                              AT HOME CORPORATION

                              By:      ___________________________
                              Name:    ___________________________
                              Title:   ___________________________

                              ZENGINE, INC.

                              By:      ___________________________
                              Name:    ___________________________
                              Title:   ___________________________

                              MIAMI COMPUTER SUPPLY CORPORATION

                              By:      ___________________________
                              Name:    ___________________________
                              Title:   ___________________________

                              FOUNDERS:___________________________
                                        Joseph M. Savarino

                                       ___________________________
                                        Lalit Dhadphale

                                       ___________________________
                                        Christopher Feaver

<PAGE>

Joseph M. Savarino
April 6, 2000
Page 3

                                JOINDER AGREEMENT

     Pursuant to Section 13.1 of the Agreement, the undersigned hereby joins in
the Agreement ("Joinder") and agrees to be deemed an "Investor" under the
Agreement and to abide by all of the terms and conditions of the Agreement as an
Investor party thereto from and after the date hereof with respect to shares of
common stock, no par value per share, of Zengine, Inc. ("Common Stock") issuable
upon the proper exercise of the Warrant to purchase shares of the Common Stock.

     IN WITNESS WHEREOF, the said Investor has executed this Joinder, this 6th
day of April, 2000.

                                      rexstores.com, Inc.

                                      By:________________________________
                                         Name:    Stuart Rose
                                         Title:   Chief Executive Officer

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