I have a Maple Chase 09520 thermostat that I am replacing with a Hunter 5-2 programmable thermostat model #44133. There are 7 wires for the Maple Chase and the slots they are in don't match the slots on the new Hunter. Which slots do I use for which wire? This is how it is wired in the Maple Chase:

White-->C
Red-->R
Yellow-->Y1
Blue-->E
Green-->G
Black-->W2
Orange-->O

The Hunter has the following slots

Rh
Rc
Y
G
W
UNLABELED SLOT
O
B
W2
Y2
UNLABELED SLOT
A