you have to have your photos hosted on the internet see here http://www.finescale.com/fsm/community/forum/topic.asp?TOPIC_ID=2331
then if you open the picture on its largest setting then right click and open its propeties your see the address of the photo (just like the one at the top of the page), copy the link between
you could also try Moses on here hes kind enought to host photos too, just look for his posts normaly German things