funny you should say that about heightmaps i was thinking about making a little app where you can convert from a texture to heightmap and also paint one , i will get back to you on the normal map command .
Looks like the community funcs is back in progress again , i will add everything as soon as i get chance .
EDIT: oops i just noticed you mean heightmaps for shaders and not the advanced terrain type , i will research what happens in a heightmap and get back to you .
EDIT2: I have just updated with the fix for the normal map command and i have added proper case function.
chunks
nvidia geforce 9500gt + amd athlon 64
windows vista ultimate.