I don't know if anyone else experienced that (might be just because of some other mod I use) but it seems that u have put the textures in the wrong folder.
It is:
/data/Textures/TNormal/
and should be:
/data/Textures/TNormal/tex/
At least that's what I had to change before it could work properly.
Anyways, again good work, that is something I missed!
