I need help with starting to hack my psp so i can hack Medal of honor heros 1

[b] Hello. I recently bought MoH 1 and i seen people like shooting rpg's with out reloads and shooting nades and flying. so i checked it out i want to LOL. but i really dont know how i noticed i need CFW? (Custom Firmware) So i have a PSP Slim 3001 i have OFW 6.38. Please if you can take your time to tell me step by step how to?
like this -
1.) ________
2.)________
Please put what it means like I noticed somthing called M33? just put whatever your saying in parenthesse that may be hard to understand
THank you
-THEepicBLOB

first register and log in. there is cfw for 6.38 check in download section