Hi Elm,
Check to see if there is another Real Tracks folder nested in your original RT folder. It will have the same name as your Real Tracks Folder. "Real Tracks". I keep my RT's on an external drive. When installing my RT's, the installer created another folder within my designated RT folder. All of my additional files went there. If they are there, drag them out to your original RT folder. Rebuild and you're done.
Hope this helps.
TakeCare
Bill