Actually, hemikid told me about it.
You just go to their website (tinypic.com), click "browse" for the photo you want to post on a message board, then it gives you a url. Use the url they give you when you click "images" on this board, and the photo should appear.
1966 Plymouth Fury VIP (383-4 bbl)
1969 Cadillac Fleetwood Brougham
1976 Cadillac Fleetwood 75 Limousine
1995 Lincoln Town Car Signature Series