It probably needs Access '97.

I have successfully edited the raw tables once when I had a lot of other backups, and I needed to reset the voice-mail monitor password that had scrozzed itself.

But in general, that was a last ditch attempt, but it was successful. I wouldn't recommend editing and uploading, especially if you don't have the correct version of Access/JET that the tables are saved in, and you don't know what you are editing..