I recently purchased a MacPro. I bought parallels and XP home and loaded them on the computer. Everything worked fine. Previously I was using an iBook. I did not migrate all my information over immediatlely because I did not have a 6pin to 6pin firewire connection. After getting one I migrated everything over from my old iBook to the new MacPro. Everything is working fine except now when I go to start Parallels it brings up the OS installation assistant like I never put XP on in the first place. Before I go I do something like putting XP on again I wanted to see if there is something I am missing. I assume the windows XP home version I loaded on is still there so I am not sure what to do. Please help.
Look for a directory ~/library/parallels. Your VM files will be in a directory under that if they are still there. If they aren't, they will be there in the full backup you made before you did the migration. (You did one, right?) You can also use spotlight to find *.pvs or *.hdd. Both file types will be present in a VM folder. If you do find our XP installation, go to that folder in the Finder, and double click the .pvs file. Your VM should start.
Oops Of course I did not do a full backup, that would be thoughtful. I tried to find the files that you mentioned and they are not there. I guess I have to reinstall?
I think the migration of users creates new user accounts, so you might check to see if your original user is still there. I've only used migration directly after an OSX install, so I had nothing I'd put on the machine to lose. FWIW, the migration assistant doesn't move everything -- just users and applications. Anything installed outside those areas has to be moved by hand (as I discovered when MySQL didn't work and had to be moved by hand).