So you have RemoteApp up and running and you have made an MS Access database available in the list of Remote Apps, but when you open it you get a message stating that the Database is read-only and that you can only update Linked tables!

Most likely this is a permissions error. Make sure that the RemoteDesktop Users group, whatever that is named on your server, has full permissions on the Folder housing your database, and on the database file itself.

Hope this helps someone!