that's how my Honeywell is connected.
i was just going to pry it off so i could get the wiring for you and luckily i checked your thread first.
we have our Green hooked to low, since we don't usually use the a/c and if we do, we don't need it on high.
you can get a toggle switch from Radio shack to use the high and low fan speeds. some just cut a hole for it in the housing of the stat.
glad you got it working.