As you are aware Winfast TV2000XP has problems while working with 3rd party capture applications: it plays SAP sound channel instead of stereo.

Looks like this problem comes from driver.

I made a workaround for this problem in VirtualVCR, so I am getting stereo sound for all US cable channels.

I also added couple of new feauters:
1. size of window can be changed (beware: this will increase cpu load!!!)
2. mouse scroll button for changing the channels
3. more meaningful (IMO) application caption

Patched VirtualVCR can be downloaded from:
http://wave.prohosting.com/avarakin/Video/VirtualVCR.exe

You may have to download newest Winfast TV2000XP drivers.