Lately, I have been reading through Blender's source code. I have modified (i.e., hacked) Blender's internal renderer (both 2.49b and 2.5x) to make use of MOI's true nornals! This may not sound like a big deal to you, but it is for me because I learned to code in C, and I can finally render the true normals that my python script imports.

Here's my old post of the script:
http://moi3d.com/forum/index.php?webtag=MOI&msg=979.1

Binaries, test renders, and more info:
http://home.comcast.net/~chronosphere/true-normals.htm

Warning: This has been tested with Moi 1.1 only. I do not plan on upgrading to 2.0, so if you have problems with that version, I can't be of much help.