Psp Simpsons Themes

Another PSP Question?

Where can i find a custom firmware so i can download some classic games to my PSP??? I already found what i want! and where but if enybody has some great sites for some N64 and PS1 games then please post theme here so life can be easier! I really want to download The Simpsons Wrestling to my PSP but i heard i need some custom firmware! and i dont no where to find this! if you can please help then i would really appreciate it!!!

P.S please provide he safest firmware! i dont want to brick my psp! i also have a MEMORY STICK PRO DUO.

go to pspiso.com

its the psp limewire .lol

SIMPSONS THEME FOR FIRMWARE 5.00 AND UP