Link Image not showing?

Hi,
I have selected a URI to an image for one of my Links in the Links Manager.
Ive set the Link Cat to show an image, and Ive added TRUE to my get_links tag but the image isnt showing ??
http://www.im-travel.net/home/index.php/text-links/
and the test link Portobella should show an image.
Any ideas what Ive done wrong (1.51, Mod Kub)
Thanks