one questions...Homebrew (like emulators and ROMS) or ISOS?
the ONLY thing we can help you with is where to get EMULATors. No ROMS or ISOS so dont even bother asking us where
If you want to run SNES or NES and such games on your psp visit
www.pspupdates.com ...for ROMS, we cant provide you with that information