Ah, that's unfortunate. ScanOS (and rebuild BCD as well, if theres no problems) return 0 if they're successful, so thats a good thing, but I guess your problem is a bit more complicated than it appeas. Judging by that error message, it looks like it might be an idea to check in the BIOS to ensure it is actually booting the Windows 7 drive. and not the XP one. (It's not impossible something's switched them round without you realising, even if they were in the right order before) If it is, and you still get that error, then I'm stumped. Coldy's right, it probably is easiest at this point to just reinstall Windows.
EDIT: You could also try running these commands at the command line, but I don't think it'll help, since your PC doesn't seem to even be reaching the bootloader. No harm in trying if you want though:
bcdedit /export C:\BCD_Backup
attrib bcd -s -h -r
ren c:\boot\bcd bcd.old
Last edited by The_Terminator; 06-18-2010 at 01:17 PM.