There are several programs that fix hard disk problems, or to be more exact let you recover data. IIRC the latest issue of Personal Computing World (UK ed) has one of them (full edition) for free on its coverdisk. If you could get a copy of that magazine it might help you. (It is also a good magazine).
I might go to a shop later tonight so I could have a look for its name. I can't get it and send you the program electronicaly because it costs a bit over 3 GBP and I have 10 for another 10 days...
You might want to have a look at
www.download.com or perhaps even zdnet for programs to help you recover data. Or even yahoo,google etc.