hi i just bought a psp on ebay that is ver. 1.5 that came with a 4 gig. memory. i'm new to this whole process, but everyones gotta start somewhere. so this psp is brand new and is ver. 1.5. can someone help me get starts on how to homebrew. and what is the OB-C i keep seeing around. can some get me up to date with EVERYTHING please and thankyou.