jeff,
If you go to photobucket and click on the picture you want to post to the forum, you will see the big picture in the middle and to the right several options. the 2nd option down says 'direct' If you click on the box to the right of that word direct where the link is it should flash when you click it and say 'copied' that means it is on your clipboard.
Then go back to your post and click the picture icon that says upload floating or nonfloating picture. I just pick the top one in that drop down and then when the dialogue box comes up, just hit control V or paste and that link will drop in that box.
Then while you are composing, at the bottom of the composing box there is a preview post button. Click that to see if the picture automatically pulls in the body of your post.
The one you did above has too many brackets around the link or something went wrong so it isn't importing. You can go back and edit that post and try again and use the preview button until you can see that you got it correct.