A few days ago I was having problems centering a pic in the banner module. I scanned the forum to see if any else had this problem. Some one did, but no one replied to his request.
What I found was, if you attempt to display it (the picture or Ad ) without the container displayed, it aligns to the left. However, if you choose to display it (the picture or ad ) with the container, it will align in the center.
I didn't want the container to display so I created a transparent or invisible container. Now it displays perfectly....
I hope this info helps anyone that had this problem...
Good Luck and Best wishes with all your hobbys and commercial project..
Tim