Windows XP User Profile question - transfer profile

Ok here is the deal. A very log time ago we had a Windows 2000 domain called "Coastal". Eventually that domain was history however there was one user who kept his computer configured to that domain even though there is no more DC for that domain. His WinXP computer is like that to this day. He is a programmer for the company that I work for.

Fast forward to now. 3 days ago we created a new domain and upgraded to Server 2003 and Exchange 2003. The most recent domain was called "Coastalcomputer.local" and it was a Windows 2000 Domain. This programmer could pull files and email off the "Coastalcomputer" domain without a problem, he would just have to authenticate with a U/P. Now that we have moved to Server 2003 everything is extremely secure and he cant seem to do anything. With the tight security in Server 2003 I can understand why he cant do much since he is not part of the new Server 2003 Domain. Anyways, ill get to my question. On his WinXP computer I need to get him on the new domain and get his profile transfered over so his desptop and application settings transfer to the new profile for the new Server 2003 Domain. This settings are very important and this believe it or not is a big deal. I have read about several ways to deal with User Profiles and I see that some of them require the ability to ReJoin the old "Coastal" domain. Just remember the DC for that domain does NOT exist anymore.

Thanks,

-Glen