Are you sure? I don't remember using that side border.
I *thought* you had used a side bordered background before. Know that one of the Christmas Music threads you and Daisy did together had a left side border. Maybe that's what I was thinking of. Anyway, without going into a lot of detail, you just have to adjust your text and graphics to be centered on the solid part of the bordered background. You "align=right" an *invisible* table that is the width of the solid part of the bordered background, and then everything is centered and blockquoted on just that part.