I've got a 9800pro TVI card thingy, and it came with a little box device that enables me to both output and input composite and s-video.
Because my VCR doesn't have composite out, I've plugged a SCART to s-video converter into my VCR and have then plugged an s-video to composite out lead (it's all i have to hand) into the converter and the little box thingy to go into my computer. Due to my inability to type and create proper sentences, here's a diagram:

but now what? how do i view (if it's even working) what's on my VCR on the PC?