Mods - Please have a look at this link -
http://ecomodder.com/forum/showthread.php/win-100-00-free-gas-design-contest-ecomod-246.html#post1717
There are several old posts ruined by bad links to third party image hosting sites. Some times the discussion dwells on the details contained in the pics so much that the post/thread is useless after the pics go away.
I suggest you have some tool that senses a link to a third party pic hosting site, pulls the pic and hosts it on your site, so that it continues to be displayed as long as the post stays up.