They don't seem to update it regularly or at all. The images that are shown when you go to my area (North Queensland) are at least a year old (even though it says 2005 on the screen. ) The image shows green grassy paddocks where there are now buildings and developments which were built about 18 months ago.
I think you have to subscribe to the pay version to get latest images. But it is still a very useful program. I use it quite often when planning flying trips.