To add an extra link to your Navbar :
Find in navbar template :
HTML Code:
<!-- nav buttons bar -->
<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">
Add underneathe (Modify the link to match your boards url) :
HTML Code:
<td class="vbmenu_control"><a href="HTTP://WWW.YOURSITE.COM">Home</a></td>