Littledreamdevil,
At the top of the reply box is a bunch of controls. If you click on the one that looks like a picture frame, 3rd from the right on my reply box, it will open up with prompts so you can upload a pic to the reply box. But, it's best to size them to no bigger than 800x600 pixels and 640x480 is better yet, for those who are still on dial up.
Joe