Blp tools acting up

I use the blp tools convertor from the macstorm site and so far it has worked fine but now all of a sudden it wont convert anything at all what so ever. I allready downloaded it again and that does even less, it doesn't even show which blp u click. I need help or advice. thx in advance
Edit : Please delete this post I fixed it. it was a faulty tga that messed everything up. sorry