I've been hunting and hunting here in the UK for a supplier of the Vista series of alarm systems and the VistaICm but I've not been able to find them so far (still hunting though).
In the mean time does anyone know if LinuxMCE supports the Honeywell Galaxy Ethernet Module as the Galaxy series is readily available here. If not any suggestions for an alarm system where I can use the PIR's with LinuxMCE to turn lights etc on would be greatly received.
The Honeywell Galaxy Ethernet module is not supported currently...and as far as I know may never be as this module seems to be limited by the firmware in the panel.
All the best