Normal maps aren't fully supported (as many of us are finding out).
There are 'workarounds' to get them to look correct, however they are ugly and cpu expensive.
I would suggest that you not use normal maps, you will find that for Blitz3d it is your best option.
Edit: oh, animated, then your def screwed. I heard that normal maps don't work on animated meshes (just what I heard). Wish I had better things to say, sorry.
There are 'workarounds' to get them to look correct, however they are ugly and cpu expensive.
I would suggest that you not use normal maps, you will find that for Blitz3d it is your best option.
Edit: oh, animated, then your def screwed. I heard that normal maps don't work on animated meshes (just what I heard). Wish I had better things to say, sorry.