Sch and Crosschain...Now that the Search Feature is back up, I found a sticky on the subject. One of the posts is below. I tried it and it works. You don't have to open up a special account with a photo service if you are using a web picture. Don't know if it will work with a picture you took and saved on your own computer. Note...the message says left click but they mean right click.
Good luck.
If you find a picture on the internet, left click on the picture and a menu will come up. Press on the properties button then there will be a adress (url) for the picture. Copy the address and go back to the forums, hit relpy and in the reply screen there is a mountain button, press the mountain button, and paste in the pics url and voila you have a posted picture!