Ok. I've been out of the PSP loop for a while now but the game Tactics Ogre has me charging up my PSP for the first time in a while. What I have is a PSP 1002 (That's the number on the bottom) with Custom firmware 5.00 M33-6. What do I need to do to play Tactics Ogre? Is what I have enough to play it? Also this may sound crazy but could I just use a Sony update to get my machine back to OFW?