Dropdown Menu

Hey everyone. I want to get a simple dropdown style menu on my “Downloads” page (http://www.techgeec.com) so that I can keep that page neat rather than having link after link. I’ve tried multiple times to get a dropdown menu where when you click on a selection (or a “Download” button), the download window will pop up. But so far all of the dropdowns are unresponsive with the links. Can someone please help me.