Exhibit 99.2

                            CERTIFICATION PURSUANT TO

                      SECTION 1350, CHAPTER 63 OF TITLE 18
                           OF THE UNITED STATES CODE,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection  with the Quarterly  Report of ADVANCED 3-D  ULTRASOUND  SERVICES,
INC.  f/k/a YSEEK,  Inc.  (the  "Company")  on Form 10-QSB for the period ending
March 31, 2004, as filed with the Securities and Exchange Commission on the date
hereof (the "Report"),  I, David  Weintraub,  Chief Executive  Officer and Chief
Financial Officer of the Company,  certify,  pursuant to 18 U.S.C. section 1350,
as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)  The Report fully complies with the requirements of Section 13 (a) or 15 (d)
     of the Securities Exchange Act of 1934; and

(2)  The information  contained in the Report fairly  presents,  in all material
     respects, the financial condition and result of operations of the Company.

/s/ David Weintraub

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David Weintraub
Chief Executive Officer
Chief Financial Officer
April 29, 2004