Hey I'm new here and just need someone to post me a link to mod my psp and play backups (I read the rules and I believe that doesn't count as piracy?)

The trouble is, googling just comes up with tons of outdated guides so I don't know what to do. I've done wii's, and 360's, so as long as I have the most current guide I'm all set, I won't ask stupid questions lol.

It should be easy, it's an old fat psp with 4.05 on it. From what I've been reading the pandora battery thing is no longer needed, however, that's all I see in the guides. Thanks a lot on getting me started :)