As a conclusion to this little fiasco;
There were 2 problems. Not being smart enough to install the chip drivers.
And #2 not setting the BIOS up correctly so the capture software recognized the capture port on the video card.
The BIOS set up on this P4C800 very complex compared to my past experiences. It certainly is not intuitive and there is hardly any explanation. Now it's working OK after I guessed at some parameters.
