it works on my original ps3 80gb with no modifications at all, its just a different kind of hacking that involves a pc which manipulates the multi player game data being sent from and to the ps3, this works on almost any game on any system.
it takes a lot of research to create a hack for a game, a lot of raw network packets need to be analyzed before a hack can be made, but there is no mod chip etc needed and its hard to block by the game server admins etc. so it will cost me a lot of time, wich equals money.
i can tell you how it works but its not really something anyone could write a tutorial about, its very very complicated.