Hi Kelly, The JavaScript component of Superfish is only responsible for the showing and hiding behaviour of a menu and whilst a small parts of the Superfish CSS (the hover and sfHover parts) are required to make this happen whilst retaining accessibility when JS is not available, most of it is just for presentational purposes and can be altered however you like.
You will need to alter your CSS to achieve the layout you require. Therefore, you might be better off looking for examples of what you want to achieve on sites that focus on CSS and Suckerfish menus in general. cssplay.com comes to mind - I remember that site having lots of menu examples so it might be worth a look. Basically, you don't need to look for Superfish-specific examples as it is all about the CSS. That said - if someone does happen to have a Superfish example of said menu-type, then that would certainly help you get started. I think if you need specific widths for each submenu then you may not be able to avoid assigning widths to each one individually using CSS (via classes or ids). Joel Birch.