Fair enough. Well, obviously I have no expertise in this area other than jailbreaking apple devices but after a quick google found this website http://jailbroken.co/index.php/ps3-jailbreak-4-76-ofw-to-cfw/. There also seem to be many videos after googling "how to jailbreak a ps3" that follow the same method which you can use as a guide.
BTW, I'm pretty sure this is the wrong section to be posting in.
E: Might be worth trying to source out a 'jailbreak' Reddit