BCM 2007 backup and restore lost categories

[Nathan]

Our IT Admin (who is not familiar with BCM) has changed my domain profile and
now I can't see my categories. I have a complete backup before this profile
change happened, is there any way to get my categories back into the Master
List?

If not is there a way to add the categories to the Master List without
having to relink the categories to my accounts and contacts?

Thanks,

Nathan