It also uses font awesome for the icons, not images @gentlemedia, so:
add <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
to the <head>
and replace <img src="icon-2.gif" alt="Icon 2" />
with <h1><i class="fa fa-globe"></i></h1>
Hope this helpes :)