Sorry, I don't know how to help you on this, never even knew about the backup feature until now.. You can ask for help on any of the sites mentioned on this article:
http://www.techsupportalert.com/best...port_sites.htm
Next time, do manual backups (copy and pasting) or better backup programs (
http://www.techsupportalert.com/best...port_sites.htm). GFI Backup Home Edition is the freeware update to Titan Backup for your information.
You may also want to try file/folder synchronization (
http://www.techsupportalert.com/best...on-utility.htm) and drive imaging (
http://www.techsupportalert.com/best...ng-program.htm).