Windows 8 touchpad drivers

Before Windows 8 released I heard a lot about some beta drivers that enabled gestures on certain trackpads. I have an HP laptop that's about three years old and the trackpad had a clunky version of two-finger scrolling under Windows 7 but now it doesn't have any multitouch features at all with Windows 8.

How do I find out if the fancy new gesture drivers will work with my PC? And if they will work, where can I get them?