Trying to restore some MU blogs after hacking!

I guess I have got something wrong somewhere, as a seasoned IT pro I should document what I do but seems I didn't!

I have had to rebuild my installation after some buggers managed to hack it. I am trying to restore snapshots I have but the following is happening....

The snapshots are showing:

http://site.mydomain.com and the restore is trying to go to
http://site.www.mydomain.com

I know I have done something daft but can't spot it!

HELP

Chris