Now there are GUI version (which is geek/hacker-proof) meaning u don't have to know stuff, all u need to know is how to follow instruction and click2. That's all. My laptop crashes and having hardware problem at the moment, so no direct link that I can give to you fer now. But google iBrickr or iphone hack or whatever. It will lead you to the solution anyway. Just be assure to ask before doing anything you are not so confident doing of. So far I tried to "hack" mine but laptop is having problem, keep getting errors. But I have no rush for simhack as I am currently using AT&T anyway, so I am settled with ringtones hack by far.