Worked fine for me on the first try using the Classic YaBB format. (IE-6)
One suggestion for a minor change, if it's possible -- add some kind of "edit" function to permit you to move the pin and/or change what shows as the city. Right now the only way to do that is to remove your pin (which you'll find under "add pin", if you've been looking for it) and put in a new one.
I'd originally left the city blank, then decided what the heck, without my full name there's no harm done, so redid it including the city.
As a P.S. (didn't even notice it till now) -- anyone else notice that we now have national flags included with our names, "status", etc., in each posting? I assume that's tied in to the new map, and I'd also assume that if you haven't yet "pinned" yourself to the map then you don't yet have a flag (unless you already had one as part of your avatar or signature).