Very good. Now, to get a picture's URL, right click on the picture, then click on "Properties", then select the "Address (URL)" and plunk it into the Image icon. If you get a
There's all kinds of sites for pictures. You can search on "cartoons", "clip art" and so on. Also, Google has an image search: http://images.google.com/advanced_image_search?hl=en
Also, the link should end in ".gif" or ".jpg".