I had hoped it was easy enough to figure out now. You only need one of the first two, depending on whether you are using Revenant100's Sprite Fixing Project or not. If you are loading the wrong file, you WILL notice it since brightmaps won't match the ingame sprites all the time.
I will again rephrase the downloads in the OP, hoping it will avoid any future confusion for good. And please, don't quote the entire OP. We can all read by ourselves, I believe.