Hi Spindleweb,
Try these links.
Gesture support under Mac OS X is documented here: http://touch-base.com/documentation/Gestures.htm#_Mac_OS_X
TUIO Server support under Mac OS X is documented here: http://touch-base.com/documentation/TUIO.htm#_Mac_OS_X
I ran into some trouble when setting these up myself. I slightly remeber that you had to open the zip file and install the Gestures app. Gestures is a purchased add-on. Then you had to move it into the Utilities folder with the base-drivers and make sure the TUIO Server is running which is part of the zip file. You can adjust the setting for the Gestures from the icons on the top of your screen that show things that are running. One icon should be a little hand pointing and the other should be a black and white Tui shaped like a circle.
I also had to put some add in called Greasemonkey into Firefox to make the scrolling functtion work better online. I am not that technical with computers. You can also email Dave from Touch-Base at
dave@touch-base.com
The Gestures will work once you get it setup. Dave was very helpful in getting everything setup correctly. Good-Luck. Let me know how you make out.