Tazman: go to google or any search engine and type in, for example: "puppy pictures". When you find a pic you like, right click on your mouse and you will see a drop down menu that shows among other things: "properties".
Select and copy the entire property text, (it is a web address), then when you come back here to SR, select the picture symbol in the little tool bar: (it's the mountain with the sun symbol).
Once you click on that symbol another little window will open asking you to paste in the property text.
The window will often have the prefix for a web address: delete that and paste in your entire property address.