click on profile in the menu to the top right corner....it actually used to be a scrolling javascript menu before, but Gman changed it :(
when your on the profile page, look to make sure you have enable signature checked yes.
in this box, you can type anything you would want to be attached to every message you post.
example: a url, a phrase, or a picture.
in the example I have here, it's an image.
the img tags surrounding the url for the photo.
depending on what directory the file is stored whould determine the extension.
in this case, it's my server.....and because I'm so messy, and I don't put anything in files.....it's in the main folder.
if I kept it in order usually there would be an images folder or pics folder, (some filename I would use to store pictures) and the extension would look like this:
http://www. notbrandx.com/images/whatever.jpg[/img]