profire 2626 s/pdif issues

I have a Profire 2626, an FAST TRACK PRO, and a SPDIF cable which connects the two. What do I have to do in order to make my DAW (sonar 8) pick up the two inputs on the FTP as digital ins on the 2626?


windows 7 64bit
i7 ivy
8gb ram
Western Digital 2TB Caviar Black