I see it in the source code I believe, but it looks like someone has put HTML comments around it?
Code:
<!--<ul class="nav navbar-nav">
<li class="leaf first {if:isActive(#main#)}active{end:}">
<a href="">Home</a>
</li>
.........
<li class="leaf {if:isActive(#how_it_works#)}active{end:}"><a href="?target=how_it_works">How It Works</a></li>
<li class="leaf {if:isActive(#faq#)}active{end:}"><a href="?target=faq">FAQ</a></li>
</ul>-->