bc, that's only part of it, let me see if I can explain. In the following example substitute the ampersand key (shift 7) where I use the pound key (shift 3) and url is the http address of the image.
So my signature is as follows. #lt;img src="http://www.havensoft.com/images/ang/smartie.gif"#gt;
The ampersand lt; turns on the HTML sequence, the img src= tells it where the file resides on the web (be sure to use quotes), finally the ampersand gt; turns off the HTML sequence. Now if I typed that all correctly (it's hard spelling out ampersand instead of hitting the key) everything should (hopefully) become apparent.
By the way, to minimize my keystrokes I cut/paste from notepad. Wick P.S. Be sure that the GIFs are listed as being >font size=+1>FREE