I dunno what you did either
Just click the edit button on the top right corner of the post with the pictures in it. Clear everything in the post and post over. Go to photobucket and left click in the URL textbox (it should highlight they whole url automaticaly) right click the highlighted url, click copy.
Come back here and click the image tag again. Hit CTRL + V to paste the url of the picture. ...
If you already know how to do this I apalogize
You have your opening and closing IMG tags mixed up.
PS the tank is very nice!