I just typed this and lost it through some Firefox glitch so typing it all over again.

I just disconnected my old White Rodgers Type 1F58-72 Thermostat which had the following connections.

Red - R
White - W2 - Auxiliary Heat Relay
Blue - B - Reversing vale energizes during heat
Yellow - Y - Compressor contactor
Green - G - Fan relay

The problem is that the Hunter 44660 programmable thermostat that my parents got me for Christmas (in lieu of socks) is missing tables A and B from pages 12 and 13 (according to verbiage in one of the steps) that maps wires to the new codes. The new codes are

G
Rc
Rc1
Rh
Y/O
W/B
Y1

As best I can figure, since Single Stage Heat pump is the only wiring diagram with Compressor Contactor connected, that I need to use that one. I do have a heat pump. (Payne PF1MNC037) .

Based on this I can map
G --->G
R ---> Rc1 with a jumper between Rc and Rh
Y --->Y1
B--->W/B because the old one was reversing valve energizes during heat

So two questions, where does the old W2 (Auxiliary Heat Relay) go to and beyond that, am I right? Im thinking W2 goes to W/B but that means two wires go to that terminal. I have googled to death trying to find Table A and B but no dice and no other descriptions of similar problems. I could buy another thermostat but that's just wasting this one. I had hoped the online version of the manual would have tables A and B but it doesn't and the French version didn't either, so they were consistent with their mistake.

The other thing throwing me is that the old thermostat says 2 stage heat 1 cool. Maybe it can be used for both depending on how its wired.

P.S. I am an average home owner.

Your problem is you only have a single stage heat pump thermostat, you need A TWO STAGE heat pump thermostat, good luck and you do have the other wires correct,

Thanks, square peg, round hole. Its been 38 years so the confused feeling was lost to me.