David, ya need help son:)
While on your photobucket page, place your mouse cursor over the picture you want to post on trad gang. When you put your mouse cursor on a picture, a drop down window appears. You want to left click on the bottom box that says IMG code, when you do it should say copied. Then come back to trad gang and in the box where you type your message, right click and click paste and the url for the picture should appear. You can click preview post under where you type to see how it looks, then close that box and hit add reply.