Sorry, I was confused, since you said you can see the pin and that was the problem. The reason the pin isn't showing up is because the image that it is referencing has not been uploaded to the server.
Make sure the google_javascript/images/ directory and its contents are uploaded to the server.
I'm not sure what you mean by autochoose. Are you getting the values from a recordset? Are the values valid addresses that are being passed to the map?