So I bought a clunker G3 iBook and wanted to  make it a touch screen unit.  I called the people at Troll Touch Screens and go a very unsatisfactory we will not sell you the parts, unless we do it here at the factory. Thumbs down for them. especially at $649

So I searched elswhere and saw a couple items, but particularly this on one ebay that looked attractive:

But I am curious where I could find a driver for it
or somehow make OS X belive its the track pad.

Any ideas?
iBook G3 OS X 10.4.8 / Ubuntu Dapper Drake 6.0
Mac Mini Intel Core Solo 1.5 GHz OS X 10.4.8 / Vista RC1 (testing)
Coming Soon: Mac Mini G4 1.42 OS X Server 10.4.8