Ok, job done.
It looked as though you had tried to copied the actual image and pasted it into your sig, which unfortunatly won’t work. You needed the url for that image, which we now have. I saved the image and uploaded it as an attachment then linked to that from your sig. The reason I did that was because others complained about their sig working and then sometimes not working, so it's a bit of a fix.
HTML code isn’t permitted on the forums so that won’t work either.