That's an old card, and I could not find a manual for it on-line. If you have a manual, that would make your life easier.
The card has two inputs - Composite and S-Video- and two similar outputs. It also has a IEEE 1394 (Firewire 400) port, but I can't tell whether it is for input, output or both.
A video capture card has three basic functions. It must accept video in some standard format, capture each frame, digitize that frame using some CODEC, then store it on a hard drive as a file. One file contains an entire captured video, but there will be some limit on the length of "one video". That card does NOT appear to have a way to capture audio at the same time, so how that MIGHT be done with an additional audio capture device is...