OK ... sorry ... I just tried on my computer what I was advising you to do and it does not work that way.
You mentioned restoring your computer which I assume you mean reinstalling XP again?
If you do so I would leave out the 7GB hard drive and put everything on the 100GB.
In the beginning you said you were forced to use a reboot disk.
By this do you mean you reinstalled XP? If so what disk did you use?
A Microsoft XP CD or a Recovery CD from your computer manufacturer?
If the latter what is the make and model of the computer?