U can just use iTunes 7.7.1 and check for update then just upgrade to 2.0 (takes a while)
Use Winpwn:
Main Page - WinPwn
It's the windows unlocking and jailbrale tool BUT u need to have a download of the 2.0 firmware and the 2 bootloadrrs for an unlock
BL 3.9 and BL 4.6 (find a torrent or google it)
2.0 UNLOCK AND JAILBRKAE IS NOT LIKE THE 1.0.2 - 1.1.4 UNLOCKS!
Winpwn and pwnage tool are the only way to unlock and jaolbrake and they do this by creating a new 2.0 firmware (.ipsw) file and then u put ur iPhone into DFU mode - then it "pwns" iTunes that then allows u to use the new .ipsw file by shift-clicking on "restore" and use the .ipsw file and restore your iPhone with that file.
After the restore is done Bootneutr we pops up and flashes/neuters/Unlocks your iPhone
DO NOT INTURPT IT WHEN IT DOES IT!
(this will pop up after the restore is done and when the itunes screen pops up and u restore from the backup)
INSTALLER IS NOT PORTED ON 2.0 YET!
Instead u have Cydia which is just like installer
ENJOY UR IPHONE 2.0 JAILBROKEN AND UNLOCKED!
For more info and a more detailed reveiw go to winpwn.com and look at the guides (or links to guides)
ENJOY!
