Upload it to your photo bucket, once it shows in your album, put the mouse on the box that says" img code" and left click once...a yellow box will pop up that will say "copied" then when you type your racing junk post, just right click the mouse and hit paste.
I can see your mistake just looking at your post....
When using the image post thing, there has to be a [img] at the begining and a [/img] at the end. with the http// part in between them.