Correct syntax to include map in an article

I'm quite sure the characters aren't interpreted as HTML. I entered the code the same way I do with other plugins, by switching to the code editor in stead of the wysywyg editor.
Link: mwanamaji.nl/index.php?option=com_joodb&view=catalog&Itemid=199
Choose tab "divemap" on this page

Even when I want to display a kml? That seems strange.

However created a place and tried with that id but with the same result, even in the most simple form:
{gmapfp id='2'}