Photos in subject line?

How do I add A photo in my signature?  I was picked up by a a few sponsors and want their logo in!

 

Got it!!'

Ok so how did you do it?

It's not in the subject line (type the heading in wrong). but in the signature line.

It's just standard bbcode but if your image is larger than 200 X 100 it will automatically default to a link.  I was trying to use coding to resize the link.  Ie- [ img=200x100 ] link [ img/]