The company that pioneered this awesome technology has been purchased by a currently unknown party – mysterious stuff!
There is problem using Google Earth Pro 6 with Revit 2012 and the Google Earth plugin (aka Globe Link – this is the plugin that allows you to acquire or publish to Google Earth). The fix is shown in the video at the following link:
Embedded below (credit goes to IdeateInc):
If you are looking for aerial images of Australia that are more up to date than Google Earth, check out:
Here is a good guide on how to install the Google Earth Extension in AutoCAD.
There is a workflow which allows the topography from Google to be placed into Revit. You could try:
AutoCAD with Google Earth Extension – Export DWG – Import/Link into Revit
Sketchup – Save SKP – Import/Link into Revit