Superfish.css menu

I have a Superfish menu on a website that is being built. I'm having difficulty with submenus showing up (they only show up on one menu item and not on the others) and I'm sure it's the CSS that's causing it. I need code added for two levels of submenus, with placeholders for each, under each menu item (as a reference for me if I need to add more submenus later). Also need the Superfish menu to automatically change menu button colour for focus page, rather than have to edit it for each page. It's a responsive html web site based on a template, so I only need one page fixed and I can take it from there. I can give you very specific instructions. And of course I need this done ASAP! Thanks!