What Butters says. That'll get you started
The picture quality will be mediocre from the s-video out as you'll only be able to get one resolution (640x480i?). This is great for what the card was designed for (showing videos and presentations at work training sessions and suchlike), but not great for gaming where you want stuff like 240p, and flexibility to set video modes and refresh rates.
You could try the deprecated Emudriver 1.2b for XP, which I *think* is compatible with your card, and taking the RGB video out of the VGA head (as normal) to a transcoder box. I think Jam makes one for s-video ("Wakabavideo",
https://www.ebay.com.au/itm/174151197805) but he is often out of stock. Otherwise, maybe a GBS-8200 or something.
RGB mod your TV (or component-mod it and use a GreenAntz RGB-component transcoder!) FTW.