I recently bought a psp on ebay which is at cfw 3.52 m33. My questions are 1) how can I tell what version it's at? I know you have to have version four to go to 3.71 m33. 2) Should i got to 3.71 m33? does it effect what games i can play? I would like to play the newer releases. I guess thats it. Help please!