Just a quick run-down of how to use POV-RAY after you have installed it. I assume you have installed it.
Hit RUN at the top of your board toolbar.
Then run 3d41.ulp in the directory shown.
The setting are extensive and somewhat confusing.
The defaults will work though. Click "Create POV-File and Exit".
You will probably be prompted to add text and sockets to certain ICs. Do as you wish.
There will also be parts that cannot be rendered because you do not have the 3D part files. Thats ok.
If there is something you would like changed for example size, angle, silkscreens, etc., change the settings a little bit. My silkscreens are in different layers than the default so I had to add these to the misc tab.
Go ahead and load your output into POVray and click run to render the image. Play around with the options until you are satisfied.