So am I overlooking something simple here, I am dealing with water on a planetary scale.  I want it in a certain section of the planet, but nowhere near the poles.  When I add a lake object, and I drag it around in the preview window to near where I want it, the lake object seems squashed from all the translating around and once I move it close enough to the terrain to start seeing water where I want it, Terragen crashes every time.  I realize the lake object is connected to the planet so it conforms to the curvature of the planet when you move it.  This works fine until I drag it away from the poles, but then it doesn't seem like the lake object can rotate the way it needs to.  
So I tried masking with image maps, and I have a surface layer masked out where I want the water, but where do I connect the water shader? Do I need to create a disc myself? I can't seem to connect the lake object itself to the surface layer.  Am I missing something obvious probably?  Any help is greatly appreciated!  thanks
Noah