I'd use psnstuff_ver_1.8 its computer app that downloads Full Ps3 and Psn games to your Pc in Package form.
Ftp to your Cfw Ps3 install the games\Dlc and Psn games.
And activate with Reactpsn,either by Pressing O For some Psn games,For Ps3 games\maps create a new user aa Run Reactpsn and Press X to activate the Games.
This is rough guide but I have managed to get 60+ Psn games and Rage,Dead space 2,Cod 5,Black Ops 1 & 2 Map packs to work on my cfw Ps3.
REACTPSN REQ'D