We can explain that.
here is some help: http://wiki.warlight.net/index.php/Map_Making
This may help too: http://www.youtube.com/watch?v=az62ZVRiNaQ
Just try, I also started making maps. the first is now on public and it goes better and better but I still don`t now everything you can do with Inkscape. I`m working on a few maps that won`t be published, those are just to try different things :)