I'm using desparter V5 (yes i know its old but its already on there) and when i try it on my psp (phat CFW) it works fine. when i try it on a friends (fat CFW,fat 1.5 and fat 6.0) it does nothing. wont boot, i hold select (the button i chose to boot it) and nothing. boots up normally. any ideas or should i just install a newer version?