1st, don't ask about illegal downloads, it will only get you banned. We assume you have an original disc. My post about it being possibly not original was just an other possibility to explain similar problems.
2nd, your only problem as i see it is that you integrated a "TEST" user to your XP. Next you retry and nLite does not show that user as it is always assuming you start from an original XP and nLite is NOT scanning for other users and only show standard XP users in addition to what comes in the Last session_u.ini which you did not load (you say).
This is why your TEST user is still integrated and you cannot remove it with nLite nor can you see it on nLite's screen. You need to restart with the original disc.