I just recently upgraded to the Honeywell TH8110U thermostat

http://customer.honeywell.com/techlit/pdf/PackedLit/69-1896EF.pdf

I know I have a Rheem heatpump. I believe it was a 1h/1c heat pump setup. The previous wiring was:

white - w
blue - b
red - r
green - g
yellow - y
grey - c
black - not connected

On my new thermostat I only have

RC
R
W O/B
G
Y
C
SP!
SP2

So the way I hooked it up was by changing setting 0190 to 1 because apparently Rheem doesn't use Orange. However I have it hooked up like below. Im not sure if the White and Blue wire are backwards or if I should have the grey and black both disconneted. It seems to be working with it connected like below but feels odd leaving wires unconnected.

Jumper - R/RC
White - W O/B
Green - G
Yellow - Y
Blue - C
Black and Grey disconneted.