I'm confused, this hack only works on Kharg TDM and Seine Conquest? And, if so, how do I 'make' other maps so I can use this on other maps? Please reply, I'm terribly confused.
It's a visual hack, if you're too lazy to make your own radar backgrounds, just make a blank black image in Paint and use that. Use the hack as a normal radar.
Otherwise. Take a screenshot of the map you want to play on and make a 2-color image of it in Paint / PS / GiMP. Save it in the folder as PNG file.