These are a lot easier to follow than the convoluted official instructions.
Posted these pictures in response to request on how to upload/post photo's in another thread and someone suggested to put in thread of it's own. Put cursor over picture and follow in number order after clicking on Go Advanced at the bottom of the message box.
I find it easier to locate the picture I want to upload if I place it on the desktop.
Make sure to wait until the pictures are uploaded, after clicking on Upload.