UMGT, hopefully the file redirection is the answer to your trouble. If the most recent backup didn't restore your files, you may want to go back to the previous backup. It could be just a bad tape. GDaddy is right - there is only one way to be sure backups work, and this is to test your backups regularly. That means restore on a regular basis. The harder the lesson, the more it sticks.
Best of luck!