Sorry, the office is skipping Windows 8 except to test for our app compatibility. Sounds like you may have (details matter?) upgraded to 8 and need to try the old uninstall/reinstall the apps and check for updates to HTC Sync and MSFT Office as well.
Sorry but I think the upcoming patch for 8 might help. We hope they will re-enable the other things that made us forget 8 for now soon.