It looks like the version # is now 39. I've updated the Google plugin to account for that in SVN. You can also add a <version>39</version> tag to your google image element and it should be good to go.
Also, as usual, keep in mind that the Google plugin is for educational use only of how to use a spherical mercator source in osgEarth and you must abide by Google's terms of service when using their data.
On Wed, May 13, 2009 at 4:44 PM, ClaudiuTanase (via Nabble) <[hidden email]> wrote: