As you did, in which case you need to copy and paste the HTML code, NOT the Email and IM code that you used, or the IMG code, which is what you use to post pics on the Yellow Forum. The advantage to using Photobucket is that you can insert pics anywhere in your post, rather than just adding them to the end.
And while I'm on the subject, if you can size your pics to be 800 pixels wide, they will fill the page nicely, but not require scrolling back and forth to see the picture. You can do this with your own image editing software, in Photobucket, or by following the link at the top of the page in the Mall. Later.
Dave
Almost forgot, Welcome aboard!