Due to our bandwidth usage currently being twice that agreed by our webhost, I stopped the ability to link to images just a few weeks ago.
I might start it up again now though.
One thing to bear in mind though, if you link to an image on someone else's site (known as hotlinking) they may get upset at this website sucking up their bandwidth allowance.
Usually the webmaster will do one of two things - send me a email (polite or otherwise) to remove the link, or, replace the image with one of a particularly unsavoury nature.
I'll see if I can restore the function this weekend.
