Need help installing the Honeywell T8611 Chronotherm IV thermostat

Hi all. I need help replacing my existing thermostat with the Honeywell T8611G Chronotherm IV thermostat. Here is my existing system:

Heatpump system with 2 heat/1 cool.

Here is the existing wire connection with the Robertshaw including the wire color for anyone familiar with the color code:

White wire connects to the Rorbertshaw's W1 Yellow wire connects to Y1 Green wire connects to G Orange wire connects to O Brown wire connects to 24v common Red wire connects to 24v hot wire and connects to R

Now, here are the connecting points I can find in the Honeywell T8611: C, Y1, G, O/B, E, W2, W1, R, X1, X2, L, OT, OT.

I'm thinking of connecting the Honeywell as follow:

white = Honeywell's W1 yellow = Y1 green = G orange = O/B brown = C and X1 (??) Red = R

Please let me know if this is the right connection before I try and fry my thermostat :). If there is a change, please let me know as well. Please send me a copy of the reply as well as I don't read this newsgroup often, at snipped-for-privacy@yahoo.com

Thank you very much.

Lan.