Hi so far the closet thing I found was this link...
Though the problem is I am not even getting the basic start of the tutorial. And of course the person who wrote this tut doesn't show you step by step how did hisa basic setup. All he did was explained that he used a cornell box, with different colored materials, and one spot light.
Though these are the results I got.
Fig1 is a snap shot that is not rendered
Fig2 is rendered with "Maya Sofware"
Fig3 is rendered with "Mental Ray"
here are the pics...