uh, so, can someone help me out here: i think i have some old ass CFW, 3.x, 4.x or something, can't check right now. but i don't really use homebrew or anything and haven't used my psp in a long time. i don't care what firmware i'm gonna have but i wanna try out those minis and possibly get some other shit from the psn store. can i go back to normal firmware or should i upgrade to some newer CFW to access the store etc. or what?