This update fixes the install issues that have been seen using certain setups. It now also provides the 32 and 64bit version. Use the proper one depending on the version of Windows you are running.
SketchUp 7 or later
KeyShot 2
The plugin will
Transfer geometry and textures
Keep hidden objects hidden
Maintain groups
The KeyShot plugin for SketchUp is free of charge!
Download here:
http://keyshot.com/downloads/plugins.html