I think you're getting an error because outlook profiles and xp profiles are kept in different directories.

I can't use a logon script because my users don't have admin priviliges. Even if they did I would have to add each one to the list of "do not deletes" in the script before they logged on. I think it would be eaiser to just wait intil a set of users doesn't need to logon on any more then delete them all at once.