I've placed a yellow float and a few words,however it seems it is not on vista,only save on my computer.Cant figure it out on the google dust help.And but must be very smooth as there's loads of camera shots there from, I pilfer it tourists.
Answers: Go to Panoramio
http://www.panoramio.com/
You can post and map pictures there. If they're relevant, Google Earth will select them to put on their map. I've get quite a few nearby, and it's free.
You have to subscribe to Google Earth.
Even afterwards you may not be able to do what you want, can you predict that if we place a pin, we would not see the pin.