On December 4, 2009 at 12:14, rtiuser said...
Until RTI releases 2-way Drivers for the Honeywell Vista board and GE Concord units we have no way of monitoring more than 8 Doors, Windows or triggering events based on contact closures without adding another XP-8.
You almost answered your own question. You can easily use the DSC security driver to do what you are asking and accomodate up to 64 inputs/zones.