jms has posted updates to his kml/kmz import scripts (version 0.1.5 released June 4th) for importing SketchUp And Google Earth files into Blender.
Here are the changes from the site:
__version__ = "0.1.5, june 04, 2006" :
Manage file with no geometry
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jms is *always* releasing new versions, 0.1.6 is out already - since this was put up!