Uh, nice, I didn't knew that Wings has this feature now - cool!
About your problem: You must adjust the texture drawing process. In the UV editor window, click create texture (rightclick) and use 1) draw background, 2) draw faces and 3) filter edge.
It looks now not so messed up, but not right even though... maybe you have to experiment with those values.
maybe you have to experiment with those values.
