On this page the section headings are links that will display a page that has all of its subcategories. I don't know if this is a module or if it was just coded. Thanks.
There might be a module to do this but it appears to be straight CSS and DIV tags. Rather than taking on the entire page just try to get one section of it of down. Right click, view source. You can see they've created classes called column-left, and column-right. If you have an editor, I use PHP Coder Pro which is free, open a new page, and drop the "Getting Started" section of code in. Make changes to it until it looks the way you want, and the links are correct for your site. The actual Getting Started page that this links to is just an unordered list. The links will be the same so you can copy them in from your first page once it's complete. Having said that, I don't really see the point of having your first menu page leading you to a second sub-menu page. Why not just have everything link from the first one? Hope this helps, JB