Hi there you will be the first person to get these cheats why are you cheating theres know point but you asked for them so here they are.

at the main menu screen hold L1 L2 and then press X a cheat box will come up type the following words
GIVEMEDAMONEY IIS FOR UNLIMITED MONEY
GIVEMEEERYTHING THATS FOR ALL THE STUFF
UNLOCKDAHOUSES THATS FOR UNLOCK ALL THE HOMES
i hope you enjoy your time with these cheats.......................
im only tellin you there will be another sims game called THE SIMS OUTAGO. BYE. SHEEEEEEEEEEEEE