Workaround for uuid(vista and windows 7 only)
This is for anyone who can't sync after upgrading to 3.0
1.Click on start
2.type in "Search programs and files" firewall.
3.Try to find windows firewall with Advanced Security if you are in windows 7 otherwise try to get on the advanced settings of windows firewall.
4.Create a new outgoing rule that blocks iTunes.exe from using the internet.
EDIT:This will just stop iTunes from accessing the internet which prevents it from checking if ur UDID is on the Developer List.
EDIT:From what has gone on it appears that ipods are the only ones that work with this.
Source: workaround for uuid(vista and windows 7 only) - iPod touch Fans forum
EDIT: if anyone got a link for Itouch (1st Gen) 3.0 torrent link polease send me