Can someone explain how they got the road overlay in flash to bend into that windy road while still looking somewhat seamless. A tutorial would be great but even a quick explanation would be nice.

Im about to begin a rather large winter map with lots of displacement work and I really need to know how to make wnidy roads with overlays rather than painting alpha or using brushes.

Heh, I asked this question before too.

This is how you do it: when you select an overlay, in the 3D view, you should see that each corner is a white square. You can select and move that square to shape the overlay.

Thanks, ill try that.