Scarpozzi
Lifer
It won't matter that the cd is SP4. SP6 was pretty much only offered as a download from Microsoft as it only came out about a year and a half ago....maybe 2 years. Try to boot to the cd and see what options you get there. If you can't get it back up using the cd, there may be some other ways to recover it. Whoever setup the image you used might be able to help you further....be it a vendor or an IT dept.