Cannot restore tib files made with BR10

I have many backups that were made with Backup and Recovery 10. I have since upgraded to True Image 2015 and now I cannot restore the BR10 files. I can mount them in explorer and see the files inside, but when I try to add them to the backup list in TI2015 they don't show up in the list.

Is this a bug? feature? or am I just out of luck?