The Dino example and all the other examples, in that zip, uses old version of the shaders, There is a normal Depth parameter in the newer version, you can use that to give more depth to the object, by setting it from 0 to 1, 0 means more depth, 1 means flat texture. Give it a try and let me know if that doesn't help, Normal mapping does work, but the only issue I found is that the default normal maps react to light a bit and mine doesn't.