My older TrackPad hardware doesn't allow two-finger window scrolling -- so...

Does anyone know if it's possible/feasible to install a W-Extended Touchpad in an older PowerBook (15" Titanium G4/550 MHz)?

There is a set of freeware drivers (iScroll2) available at VersionTracker, but they will not install unless a hardware-capable TrackPad is detected.

I've found this to be a "must-have" feature on newer models and if possible will have my loyal PB retrofitted with the capable hardware.

Thanks for any input/suggestions.