Jailbreak 3G iPhone 2.1

[dutchin]

hi guys, im writing here because ive given up!

im trying to jailbreak my iphone, its a 16gb 3g with firmware 2.1

problem is, when i load the isgw file that i download as directed, everything i have on my iphone is lost! it erases the whole thing. so then i just stop the process and do a restore from my backup in itunes because i dont want to have to do all my contacts, music etc again. look, im probably a complete noob with no idea, and theres probly a way i can retain everything and jailbreak, but i cannot find it! can someone please please help me, i need my NES on my iphone!

cheers
andy

[Rip]

Just do a restore from back-up in iTunes after you've run the jailbreak. It'll put all of your contacts and app data back.