I bought the new 5-wire Xenarc 700TSV.
The driver CD that comes with the package is Ver 3.2.4.
This driver does not work with XP.... the touch panel calibration software could not "discover" the touchpanel.
Go to http://www.xenarc.com/download.html and download a newer version of the driver and it works fine. I use the following driver:
Although it says "beta" version, it works. It doesn not have the "shutdown" feature on the bottom taskbar though.