0000935036-02-000020 S-8 3 20020510 20020510 TRANSACTION SYSTEMS ARCHITECTS INC 0000935036 7372 470772104 DE 0930 S-8 33 333-88020 02641855 224 SOUTH 108TH AVE OMAHA NE 68154 4023907600 224 SOUTH 108TH OMAHA NE 68154 S-8 1 s8sh99a.txt FORM S-8 ADDTL 1999 STK OPTION PLAN AMENDMENT 1 EX-5.1 3 s8sh99x1.txt FORM S-8 EXHIBIT 5.1 EX-23.1 4 s8sh99x2.txt FORM S-8 EXHIBIT 23.1