ok, now, make sure the illumination map intensity is set to RGB, not opaque, and if ya using an omni light for the additional effect, to set the upper and lower part of the sphere to be excluded from the light calculations of that omni light in the center of the sphere.
Now, there's another thing I like about the Video post, and that's the lightning effects it makes, just look at these two pics, the first one is through the standard render engine, the second one's through video post.