I recently had a situation, where I wasn't able to boot windows xp SP3 successfully...so eventually, I had to run FIXMBR from the recovery console and that worked like a charm.
However, unfortunately I'm not able to see any of my files at this juncture, but ironically, the remaining hard disk space is still the same as it was before I started experiencing the problems.
Interestingly enough though...my programs (e.g Microsoft Word; Excel, Adobe Acrobat Reader etc..) are still accessible! So I guess my question is....how on earth do I access the various media files, word documents, folders etc??? Any help at all, no matter how small, would be greatly...GREATLY appreciated!!
It is possible that the data might be corrupt and lost short of having a backup. That said, I would use a recovery environment such as Parted Magic and start (carefully) looking around your hard drive and seeing what you can find. If you see your files and documents, I would transfer them from the recovery environment, preferably to another drive.
If you are having boot issues, I would really considering running a memory diagnostic and a disk diagnostic. You can do both from the Parted Magic bootable CD after you make it. If you drive is failing, and I am not saying it is, you will want to start gathering up your data and backing it up.