I'm also interested in getting the NX-8E working. (I tore out my old alarm system and bought the Caddx just to use for Pluto.)
Can we also get a template for the RCS TXB16 X10 thermostat http://www.resconsys.com/products/stats/x10.htm
? This device is controllable by Pluto, but because it uses 2 X10 house codes and all 16 addresses in each house code for bi-directional communication, any of my attempts to make this user-friendly have flopped.