first of all, thanks for the good job realized for this Joomla extension.
Actually, when a GPX file contains waypoints, the waypoints are correcty displayed on the map as markers.
When clicking on a waypoint in order to get details, the tooltip displays correctly the description.
Nevertheless, when [IMG] tags are present within the desc tags, the content is literally displayed. It would be nice to display the image in the tootltip.
Let me know if you need further information.