Ranking
You don't use them in Toribash, you use them with PovRay.

This is what the README says:

Originally Posted by README.txt
Toribash PovRay Exporter
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Quick Start
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1. Download PovRay from http://www.povray.org
2. Start Toribash,load a replay and take a screenshot (f8)
- This will create a file named "screenshot.pov"
3. Click on the screenshot.pov (should open in povray)
4. Render (Render -> Start Rendering)

Modding
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The exporter comes with two include files (glossy.inc, clean.inc).

Change the #include "clean.inc" directive in
screenshot.pov to switch between them.

To experiment with your own color schemes, lightnings etc you
should change the include files.

For more help visit the toribash forums http://www.toribash.com/forum