[@Gandalf]
well try last tag to be [/img] instead the [img] 
*testing for you*
[img]http://3.bp.blogspot.com/_AvJ0r1aHJ9U/SraFLNpKtBI/AAAAAAAAChs/btsO9FBXDQY/s400/divehelmet.jpg[/img]

Yup it works ^^b you simply forgot one character thats all.