you can move the contact us menu item by editing the webassist/plugins/main_menu/menu.php file and changing:
<li class="parent top"><span><a href="../../../contactus.php">Contact Us</a></span>
<ul class="level-1">
<li><a href="../../../aboutus.php">About Us</a></li>
</ul>
</li>
to:
<li class="parent top"><span><a href="../../../contactus.php">Contact Us</a></span></li>
<li><a href="../../../aboutus.php">About Us</a></li>