How do i change and add menus

How do I change and add menus? I can't seem to find it in the SMT Framework. The only ones that I currently have on my site are "Home" and "Uncategorized".

Hi!
By default, there are two menus always visible on your screen, the "Main" menu and the "Top" menu. To customize any of them you have to go to the page Appearance => Menus and set the created menu as a main/top menu. Here are the intelligible instructions:
http://codex.wordpress.org/WordPress_Menu_User_Guide.