Replacing Weathertron thermostat with Honeywell

I am attempting to replace our Weathertron thermostat with a Honeywell RTH3100C. We have a Trane heatpump with emergency heat system. I am having trouble with the wiring. My wires don't match the 'less common wire designations' in the manual. I have the following wires on the Weathertron: R-red T-brown O-orange G-green Y-yellow X2-black B-blue W-white F-Pink Here is what I have based on the Honeywell installation guide: E=Weathertron X2 Aux=Weathertron W Y=Weathertron Y G=Weathertron G O=Weathertron O L=Weathertron F R=Weathertron R B=Weathertron ? (no wire connected to B on the RTH3100C) C=Weathertron B I have taped over the T wire, which I think is unused on the RTH3100C. Do I have this right? Thanks for the help.