OUCH! Anti-Piracy... Disgaea 2! Help plz

ok so ive insterted disgaea 2 into the psp, ripped it to my pc... and it wont work on my CFW (5.00 M33-6)So im haveng a DERRR moment... guessing... anti-piracy.....ok so what i'm asking is... can someone plz link me a patch and a patcher... or whatever is needed to fix this error? and plz no links to a patched version of the game... i wanna do this on my own :D a little less piracy o.O and a little more effort xD

What PSP Model are you using? If it's a 1k or a 2k with that old Motherboard, you can use the newest firmware 5.50 GEN-D. Disgaea 2 works after a decryption.http://forums.pspslimhacks.com/tutorials/2482-using-yoshihiros-game-decrypter-v4-w-screens.html

not sure. all i know is its an old psp fat... but i did find an easy way around the decrypter... that does work... i'll post it in a new thread to hopefully get it stickied as a solution :D