to downgrade to m33-6 download this
MEGAUPLOAD - The leading online storage and file delivery service
1)place the RECOVERY folder in the directory X:PSP/GAME where X is your memory stick drive letter
2)Come out of usb connection and go to game then click on hellcats recovery flasher which is on your memory stick
3)It will ask you to agree to something just agree and then it will take you to the main menu
4) choose the second option "install m33 of the firmware above"
5)it will ask you if to reset settings choose yes
6)let it flash and when its finished it will tell you what to press
its good to be back pspmod