between the 2 tags you need the full url in proper format, such as
http://www.picture.com/slutsoplenty it appears you tried to do something along the lines of
[img]slutsoplenty[/img]
and it'd look like this.... (sample pic on the fly here)
Favorite Wood Coasters: The Voyage, Ravine Flyer II, Thunderhead, Balder
Favorite Steel: Steel Vengeance, Expedition GeForce, Olympia Looping
Parks visited: 222, Coasters Ridden: Steel: 822, Wood: 178, Total: 1000