Read my post, I said Winpwn for WinPC (Windows XP).
Upgrade to 2.0.2 through Itunes first.
And actually, the newest version of Quickpwn will now work for 2.0.2
So, after you upgrade through Itunes do this:
1. Download Quickpwn from
QuickPWN (newest version)
2. Download another copy of firmware 2.0.2 (can get from downloads section here), make sure it is the one for your phone ie 2G or 3G
3. Extract quickpwn (read the readme) and place the .ipsw file (firmware file) in the same folder as quickpwn.
4. Run quickpwn, follow what it tells you. Should take you about 5 minutes to jailbreak.
Your good to go!