You forgott the .bin file..
and I think jadems meant that you should take a screenshot of the minimap; go to view then click on overview (in the XCC editor). Then press the Print Screen button on your keyboard go to paint and paste, now you will see that you have taken a screenshot of your entire screen. You will have to cut out the minimap (using one of the tools in Paint) and copy it in to another paint window, now save the image as a png (DO NOT SAVE IT AS A .BMP!) now you are ready to upload your image..
I hope that made sence...