Edit navbar template
Find :
<!-- / nav buttons bar -->
Beneath add :
<!-- second nav button row -->
<div align="center">
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="0" border="0" width="100%" align="center" style="border-top-width:0px">
<tr align="center">
<td class="vbmenu_control"><a href="URL 1 HERE">LINKY TEXT 1</a></td>
<td class="vbmenu_control"><a href="URL 2 HERE">LINKY TEXT 2</a></td>
<td class="vbmenu_control"><a href="URL 3 HERE">LINKY TEXT 3</td>
ETC
ETC
ETC
</tr>
</table>
</div>
<!-- / second nav button row -->