Even if data is recovered, a lot of times you have to reinstall the software programs to reset the registry info. The program files are there, Windoze just doesn't know how to find them. That's probably your Word problem.Before you do anything drastic, try a utility called RegCleaner (not RegClean). You can download it at www.download.com.
Delete out ALL the Norton registry stuff, restart, then try installing Norton again.
Er, caveat -- when futzing with the registry, ALWAYS backup your data.