This driver enables multitouch on the touchpad for most laptops that use a Synaptics touchpad. That's a lot of laptops. I tried it on my Dell Mini 1012 and sure enough, it worked.
I had to uninstall the Dell Touchpad driver, reboot, then install this one. Now two-finger scrolling and other gestures work.
New HP Touchpad Driver that Unlocks Multi-Touch on older Touchpad - www.hardwarezone.com.sg