Editing the ABC_lightmap.fsh

I wanted to light up some of my court's areas. I created a PNG and converted it to a DDS, imported it and saved the fsh. The texture shows up as a white image ( in the FshX editor)...Well, I checked the new lighting ingame but it didn't work. Can you help me?

hmm, i think U don't need 2 convert the png file, with portraits i never converted them, try it!