Hi
The only thing I can think of which would be causing an orange tint is if you have something like this in your code.
DoColorShift = true;
ColorShiftColor = "1 0 0 1";
If you have either of these lines, delete them.
Secondly, just so you know, if your lighting is messed up, you might have scaled your playertype while in object mode. Never scale while in object mode. Always go to edit mode and select your whole model (I think "B" gives you the tool for this) and then scale it.
Thirdly, I don't use the newest version of blender. I always use 2.49B (cause I was always used to those controls and the new blender is weird.) Using an old version of blender works just fine for me for Blockland.
I hope this helps!