Cant Find an answer....pls help

ok currently i am running 1.5 firmware with devhook version 0.46 and devhook 0.51, i read that i could still use 0.46 with 0.51 so i kept it. i also read that devhook v0.51 writes some files to flash memory, so anyway what i want to know is what do i have to do to my psp so i can install firmware 3.03 OE C(or whatever) so i can run my psx games on it.( The main thing is do i have to clean out some files of the devhook v0.51 in the flash to install custom firmware 3.03 and if i do, how do i go about that)

1stly Iso talk is not allowed in here

U can update coz oe-c update formats ur flash0 before writing the custom firmware to it so its fine u dont have to do anything.

kool thanks