Fsearthtiles water mask problem

HiI got Fset working and downloading perfect,but i still have the problem with the water mask.The Fset user guide is very confusing.It only says draw the lines and name them and save them like this and that,but nothing about how to draw the lines in ex. inkscape...I have tried making KML files using Google Earth and saved them with Coast and deepwater names but still i get this:maybe fset does not see it even it is saved as areakml.kml in work folder....(see att. under)When i try to use the "inkscape" it does not do anything.Can someone please explain how to draw the coast lines and deep-waterlines in detail?(which pencil do i use to draw and how save them and so on)Thanks