wat firmware do you have? if you have 1.5 then this will help you

http://www.pspmod.com/forums/showthread.php?t=739 <thats some on emulators
http://www.pspmod.com/forums/showthread.php?t=3403 <thats some on iso
http://www.pspvideo9.com/index.html <free psp movie convertor
http://www.pspvideo9.com/homebrew <here is some free homebrew software thing

^^^ i think that will help