Is there somewhere a list of features for MAXtremeD3D? During the installation process I was asked whether I want to set MAXtrme as my renderer. Yet, I don't see it in the Max 9 "Assign Renderer" options.
You should see it in "Assign Renderer" options of Autodesk's 3ds Max 9 software after you install the driver and reboot the PC. You can find all the information and features of MAXtremeD3D on the official web page of the application and in the archived document. Also, you can contact the developers and ask for further details.