I was using "DevHook 0.51 + Firmware 3.01" on my PSP and wanted to run the new DragonBall game. The game required firmware 3.03, so I did a google search and found "3.03 OE-C Winstaller.exe". The installation went fine, after an initial re-setup of the PSP, AND the game played. My initial confusions over what to use are however, now compounded with apprehensions. Can someone PLEASE PLEASE enlighten me and tell me that I have not screwed up my PSP. It seems that I am no longer using DevHook AND I have upgraded the PSP firmware from 1.5 to 3.03. I was not expecting this. Am I right in making these statements? Do I no longer need/use DevHook for now AND future games; what happens when the newer games require a higher firmware? Can I easily go back to firmware 1.5 using "1.50 Recovery Winstaller.exe" IF I wanted, when a new DevHook comes out OR if "Winstaller.exe" is not upgraded? And finally, have I applied the "right" firmware file? It seems that there are OE-A and OE-A' and 3.10 versions of the winstaller; what are the differences bewteen them and/or should I have used one of them? Please put my mind at ease; It's my boy's PSP.