Its been years since I used Word 97, but I think it is set by default to not save recovery files. When it did, conjur was correct, the backup filenames usually started with a '~'. Do a search for "*.doc" and look for files made today.
Most Word crashes are due to one of two causes. The main cause is a virus which attacks Word itself. Check for viruses if you are lack with virus protection. The second is fixed with updated Office files. Make sure you go to windowsupdate.com and click Office Update. I don't know if Word 97 is supported anymore though.