Scott,
I would restore the backup and make sure the site is working properly after restoring. I would then set up a test site and figure out how to best upgrade to the newest version.
Near as I can tell this feature was removed in 07 or 08 but I can't find a blog entry verifying this.
Unfortunately, I can't help you more and if you don't want to restore your backups, you will have to wait until Joe Audette is available to help.
Thanks,
Joe