You could have misplaced a file or two when downloading the map. Make sure that all of the .fho files are in your exports folder. If it is, then make sure you're downloading it correctly. When you double click it on your screen, you should see a pop-up with a picture of the map to the left. Make sure that it sends the files to your main FH folder, not your exports folder. ^^ Try that and see if it helps.