I'm sure that you need a new card.
I had an old SiS (or Savage...I forget) card and I tried to play Everquest...no go on that venture. It doesn't have any of the features (Direct3D, openGL, etc) that any "newer" cards have, and those are the features that 3D games, such an Anarchy Online, use, and thus need, from a graphics card.
I would suggest, if you're on a fairly modest budget, a 9600 or 9600 XT. If you have a little more cash, get a 9700 or even 9700 Pro. Any of these will make Anarchy run like a breeze (well...breezy enough), and 9600's cost around $50-75 on eBay, while XT's are above that.
-JustinPS