Fix the MBR in Windows XP

[worf6161]

First of all, I have a Western Digital WD1000BB - 100 Gb 7200 RPM EIDE HDD. It is a secondary drive (no Executable files at all, just text, Pics, and music). It HAS been running fine for about 3 years until 11/18/2005. When booting the computer, I got a "S.M.A.R.T. imminent drive failure error" and said that the drive was bad and needed to be replaced. I thought it was referring to my PRIMARY drive so I disconnected the WD21000BB wrote Zero's to the Primary drive and then reloaded the OS. When booting up again after Re-connecting the WD1000BB, got the SAME error again. I powered OFF the computer and INPLUGGED the WD1000BB and rebooted the computer. The error did not re-appear. I powered off the computer and reconnected the WD1000 and booted up the computer again, and the error appeared. I allowed it to continue booting up. It booted up. The WD1000 was detected, BUT was showing "This drive is NOT FORMATED.I removed the drive and attached a DIFFERENT WD HDD. It booted up fine and showed ALL of the data on that HDD. Is there ANY THING I can do to RESTORE or Reconstruct the (MBR) for the partition and recover the data? This was NOT a bootable drive (no OS on it, just non-Executible files). I have not done ANYTHING to the drive since it failed. I have some irreplacable files on it. HELP!

Worf