The interface on creating the image map is very confusing. Maybe it's my browser or something, but I couldn't create polygons at all. I ended up manually inserting the coordinates -- already had the map done as html -- but then the plugin didn't recognize them. I handcoded the shortcodes them for it and it appeared to work until I try entering the href locations and they all would only link to "#" which was really frustrating!
This really didn't work for me at all no matter how hard I tried. How frustrating. :(