Help! Tried converting Fat 32 to NTFS

Grandma really needs help bad! I have a 200 G hard drive that has been partitioned off into 4 drives. I successfully converted one of the drives and was attempting to convert the drive that has my win XP Professional on. Everything seemed to go ok, until I shut down the system. Then the real nightmare occured. The puter rebooted itself and all I get is this error message. A disk read error occured press ctrl + alt+ Del to restart. This error keeps repeating and I can't get into my puter at all. I'm presently in a panic situation. My life is on this puter, what to do now?
TIA

 

For whats its worth i went the same way, from 'fat32 to NTFS'it seems you still have a very small amount of 'fat32'. that is the problem they do not mix.faults i had were drivers, memory computer resets and loss of hair. replaced v/c m/b h/d. after all that new h/d formated ntfs runs great. reformated the old h/d ntfs,reinstalled old memory and no faults any them.
Lesson dont mix fat32 and ntfs. cheers