Yes. The CD I used is a reinstallation CD not a restoration CD. I have missed the chance to run restoration before the reinstallation. I am not sure if it is a complete reinstallation CD, because it is only on one cd that say "service pack 2". No matter if I changed boot sequence, I always got the same error message. that is to say, even if I reboot the computer from CD-rom, same problem. I doubt if the reinstallation CD is good one to go...
Hope I am able to receive one set of reinstallation CD to get my computer back to work correctly.
Thank you very much