Thats nice!
Could you upload the modified .fx-file?
Then I'll delete everything which isn't used anymore.
(And I can use it, too

)
Here it is a demo based on spot.c form samples folder. There are two variations of the original .fx, one which uses alpha as specular, and another one which I also modified for blocks ( just changing entSkin2 by entSkin3 in the NormalMapSampler ). In the scene there are two blobs, one is a model and the other one is a block.
Download link:
http://www.mediafire.com/?3wbdk4cwyex9pnj