After some frustration and having to re-install NAM 31 twice I finally got it to work. And although I don't have much time now to work on the most grand of the cities in the region a practiced out on a few little towns with about 6.000 and 24,000.
MAJOR props to NAM!
This screen shot is the smaller town of about 6,000, the drag-able angled roads wrap perfectly around the river and other terrain. A few new bridges, along with the ability to make triangular blocks now!
Below is the larger town of about 24,000. The Textures for the urban zoning around the angled roads match perfectly with the city and buildings now.
That;s all for now!