Clickable MC with a hole

I have a MC with a hole in it, graphically speaking. I need something behind it to show through the hole. The MC has a button embedded in it, so its clickable. But where the hole is I am not getting the button finger when I play it.
My button hit area covers the hole, but it won’t recognize it apparently.
http://www.sergemedia.net/ds2/map/lakemap.html
Its the 2 bluish polygons on the map.

Is some of my AS interfering with that?
http://www.sergemedia.net/ds2/map/lakemap.fla