I'm using AsyncKmlReader to read in some .kml files created in Google Earth. Do you support import of "Image Overlays"? The machine does not have internet access so all the image files are local file references. However none of the images seem to display.
Unfortunately, "GroundOverlay" KML type is not supported in RadMap's KML readers. You can submit a feature request in our feedback portal. Later we will review it it will be available for voting.