This article explains how to download the driver for MacOS can be found below.

Download the MacOS driver:
Follow the link to the Touch-Base site.
Click the MacOS folder.
Click the Intel folder.
Download version 04, 05 or 06 per the applicability notes section just above the links.  
Most users will want the latest 6.0 driver.  If the latest 6.0 driver does not work, try the earlier 6.0 driver.
The driver supports most Elo single touch and multi-touch products (APR/PulseTouch products are not supported on Mac).