Regarding your not seeing any renders. That's because you probably have not installed aqsis. Try installing aqsis
here.
At the moment, we only support rendering by aqsis. If you aren't happy with aqsis, the only other way is by exporting the created model and using a third party software (like blender, maya.. etc.) to import the exports and render it there.
PovRay is currently stalled, but not dead. We will come back to it sometime. I will want to maintain Pov codes (I plan to make it pov 3.0 to 3.5 compatible) once my tasks are reduced.