EXHIBIT 10.4

                     MODIFICATION OF PROMISSORY NOTE

LOAN #16540

FOR VALUABLE CONSIDERATION, the receipt, adequacy and sufficiency of
which is hereby acknowledged, ESESIS, INC. and MARK HOGAN, INDIVIDUALLY
(collectively, "Maker") and First America State Bank, a Colorado state
bank ("Holder") agree that a certain Promissory Note dated NOVEMBER 03,
2003 in the original loan amount of "TWENTY FIVE THOUSAND AND NO 100THS"
Dollars ($25,000) ("Note") executed by Maker, shall be modified as
follows:

     1.   The unpaid principal balance of the Note, as of MAY 03, 2004,
is $24,610.23 and interest thereon, in accordance with the Note, has been
paid to First American State Bank.

The original Note shall be amended as follows:

     2.   Maturity Date.  The maturity date of the Note shall be NOVEMBER
03, 2004 with monthly payments of INTEREST ONLY beginning JUNE 03, 2004
and interest will accrue at 6.50% until maturity.  Post maturity rate
shall be at a rate equal to 3.00% above the stated interest rate,
effective 15 days after maturity.

     3.   Any capitalized term used herein shall have the meaning set
forth in the note unless otherwise defined herein.

     4.   In the event of a conflict between the Note and this
Modification of Promissory Note ("Modification"), the terms of the
Modification shall control.

     5.   Borrower hereby, upon request, agrees to provide annual
Financial Statements and Tax Returns.  Failure to supply requested items
could be considered a default under the terms of this note.

     6.   All other terms and conditions of the Note shall remain in full
force and effect and are hereby ratified and affirmed.  The execution of
this Modification by Holder does not and shall not constitute a waiver of
any rights or remedies to which Holder is entitled pursuant to the Loan
Documents, nor shall the same constitute a waiver of any default
existing, as of the date of execution hereof or which may occur in the
future with respect to the Loan Documents.  Maker expressly acknowledges
that there are no claims or off sets against, or defenses or
counterclaims to, any of Maker's obligations pursuant to the Loan
Documents through the date of execution hereof and Maker hereby waives,
releases and relinquishes any and all claims whatsoever that they may
have against Holder with respect to the Loan through the date of
execution hereof.

DATED: MAY 03, 2004

                              MAKER:    ESESIS, INC.


                                        BY: /s/ MARK HOGAN
                                           -----------------------------
                                           MARK HOGAN, CEO/PRES

                                        BY: /s/ GARY GRIFFIN
                                           -----------------------------
                                           GARY GRIFFIN, SECRETARY

                                        X  /s/ MARK HOGAN
                                           -----------------------------
                                           MARK HOGAN, INDIVIDUALLY

HOLDER: First American State Bank

By: /s/ R.L. MCGilvery
    ------------------------
    R.L. McGilvery, EXECUTIVE VICE PRESIDENT