Nice, I didn't know about Fractal Terrains. I will look into it.
I found a map of the plates in roughly the right format on the internet and loaded it onto a blank world in Fractal Terrains as an image map (skin). It wasn't a perfect fit, which is why it's off a bit at the poles - I had to distort the image a bit. Fractal Terrains then let me view it on a globe, rotate the globe until it was centered over a plate, and then save off an image. I repeated that process for each plate.
I really like your tectonic plate collection. How did you proceed? Did you turn 2D into 3D? How? Cheers