Modeler Aerilius says the pesky "halos" around your PNG transparency textures in Google Earth can be eliminated by grouping sections of the SketchUp model separately. Read more here.
In the model above I tried this technique to avoid the PNG railings I had created from "burning through" the rest of the building. It helped!
I also replaced transparent JPEG window textures with PNG files so that the interior can be seen through the windows. The transparent bucket colors in SU are JPEGs and don't appear transparent in GE.
I placed this model in these 3D model collections: Disney and PIXAR, Models By Zoungy, Zoungy Google Earth Models, My Favorite Models, BIG STUFF