Keyless Entry for 2002 GP SE

For some reason my keyless entry quit working. I got codes from a buddy of mine, but they are for a 2001 Grand Prix GT. I tried them and all that did was disengage my car from automatically unlocking the doors when the car is put in park. :loser:

It's a Delphi 4 button keyless entry. Does anyone have or know the codes to install this? The garages/dealers around here are crazy and want to charge me over $200.00 to reprogram the keypad.

Please help! :banghead: