I guess I better try the admin password cracker stuff...
Well, don't I feel silly. I connected everything and turned on the power to see what options I might have, maybe there was an unprotected admin user or something... and the computer booted right up into Windows XP. There was no log-in password set.
So, now I have to try and find out
why everyone was convinced that the computer was password protected. I couldn't (admittedly with just a cursory look) find any applications that were protected.
Curiouser and curiouser.
tanstaafl.