1.Delete your cod4 save game data
2.Start up RFOM and bypass cod4
3.Play online then quit game
4.Then copy the bypassed save game date to your USB, now go to your laptop and edit the GPADO_MP and GPADO_CM
5.Go back to your ps3 and overwrite the un-edited gamesave
6.Do The RFOM bypass again and it should work
i have a feeling that should work

get back to me