i want to jailbreak my iphone 3g 8 gig because i cant get the files off i need, even if it erases the files, it would prevent it from happening in the future. i have a mac with a ppc processor, so its outdated as hell. i cant find an Application that will work, it ether isn't compatible, or, as in pawnagetool, i couldn't get it working. something about an incompatible .ispw, but ive tried the one my iphone currently has and few others. i have no idea what im doing, so a step by step process would help out here alot. if you need more details in what i have or need, please, leave a comment and ill respond with the info. im in quite a situation with outdated hardware trying to change up-to-date firmware, so any advice would be nice.

i don't even know if my phone needs to be off or on during the process.
if you can help, you deserve ice cream.