How do I setup inputs with s/pdif to use virus as FX

[screwfunk]

Ok I did some searching around and tried diffrent things and still am having trouble. I was pretty thourough. I read the manual and searched this and other sites. Here is my problem. My configuration is like this. I have a m-audio 24/192 I am running both USB and s/pdif from the virus. I would like to set it up so that I can take an audio track in SX3 and route it out to the TI and back into cubase for recording. I mainly want to use the filter (kick ass filters). I have tried to set up a new buss for the spdif both out and in. I set up my audio track to go out to the spdif, then I set up a seperate track and have the input setup from the output of the TI spdif. I am using the M-audio as my asio. The TI is the master clock as well. Is there a better way to set this up. Could sombody step me though this. I have exausted all of my resources. I would love to be able to do this with the S/pdif. Also is there a way to do this with the VC. Am I wasting my time with S/pdif and should I just go analog. Any help would be greatly appreciated. Sorry for so many questions at once but im sure somebody has an answer. BTW, kick ass forum.

Screwfunk