I also get this NTLDR missing, press ctrl + alt + del error on my Windows XP Professional. I recieved a Fatal system error prior to repairing my Windows and now I get this NTLDR missing thing... I can get into my computer fine if I set my cd-rom drive as a bootup with the Windows XP CD and instead of seeing the "NTLDR file missing" it goes to "Press any key to boot from CD..." and after that I can login just fine but I don't like the idea of having to keep Windows XP CD in just so I can use my computer and wondering a fix for this myself. I tried using Recovery console and typing "fixboot" but did not solve it. I also tried copying NTDETECT.com and NTLDR file from the WinXP CD to drive C: but that didn't work either for me.
I wish someone knows the answer to this and reply something for us...