Hi John, What happens if you float the anchor elements as well as the li elements? I know this often helps IE6 behave more consistently in these situations.
If you want to remove the possibility of the Superfish JS interfering (I doubt it is though) then just remove the JS code and also remove the CSS that hides the submenus. Otherwise, obviously you won't be able to see the submenus in IE6. Then work on getting the CSS right cross-browsers before re-enabling the hiding CSS and the Superfish JS. Joel.
