Yeah, I'm still in the dark on what you have there.
As a start, it looks like the 802 is set up correctly, but see below for the positions I have my dials at. With the phantom power turned on, with the dials like you see below, you should see the 802 VU LED's jumping when you talk. Hopefully, this is happening, because then you know there is a signal likely leaving the 802.
Euro802.jpg
OK, hopefully the 1/4" phone plug on the cable at the 802 is a TS (tip-sleeve) variety and not a TRS (tip-ring-sleeve) type.
The end of that cable is hopefully an RCA.
You could (as a test) plug that into your receivers AUX input and sing and it would show it working.
The soundcards input needs to be a line-in jack. It would be stereo, so you need to use a (1/8" stereo to RCA adapter) like the ones shown below, either type. They
break out the left and right channel of the stereo line-in jack. You would plug your RCA from the 802 into the right RCA jack.
Now a signal should be entering REW if you have it set up correctly in the SETTINGS page.
The line-out jack of the soundcard is the same as the line-in and so requires a break out splitter adapter also. From the right channel of the splitter feed the AUX input of your receiver. Some people use a splitter there also to feed both the left and right channel of their receiver. (actually both outputs of the line-out jack output a signal, so you could just run two RCA cables to the receiver).
I stop there and see where you end up..
brucek