I'm sure this has been covered before BUT
if you're usiing those programs make sure the user hasn't got his files encrypted.
If password is reset on users that have EFS encrypted files, and the system is XP or newer, all encrypted files for that user will be UNREADABLE and cannot be recovered unless you remember the old password again“.
Also, UBCD4WIN has another password editor available on it.
You could also try OphCrack which will try and find the users password.
Then there's also KonBoot which bypasses the login for you.
Take your pick.
Regards,