Your question and other similar questions are answered over in the Technical Support forum. Click <a href="http://www.disboards.com/forums/showthread.php?threadid=2770">here</a>.
The people over on the tech board are awesome! They must thrive on helping us technically challenged board members. They sound like they really enjoy it!
I tried to follow a post from a few months ago on how to insert clip art in my signature line.....but, all I got was a white box with a red X. I posted asking for help and within 1/2 hour, someone set me straight!
I looked at the address when you had it in you signature. It didn't seem to be a valid address for an image. Can you tell us where you got the address that you were using? With that, maybe we could figure out the correct address to use.