Slipstreamed xp cd won't install

[swatsquadgr]

I used a working xp sp2 cd and I slipstreamed with nlite , sp3 and some add-on programs for it.

The problem is that when I try to install , it stops right after loading automated system restore (ASR) and asks to insert the disk

labeled WINDOWS XP PROFFESIONAL SERVICE PACK 3 . (Like if I had pressed F2 for automated recovery ).

What's wrong ?

[cdob]

Add a file \WIN51IP.SP3 to CD. Upper case is importand.