Buon Giorno from 3 degrees C pitch black Wetherby UK..

On this page http://tutorial.davidclick.com/philpotts-clone.html & illustrated here http://i216.photobucket.com/albums/c...leshooting.jpg Ive been trying to create a third column within the div but with no luck. I know loosely of the css theory for 3 column layouts but in my case as an exercise Ive tried to cread a third one (red copy) within an existing div. so my question is please
"is it impossible or just not a good idea to create a third column withing an existing div wrapper"

Any insights welcome :-)