Im sorry if this has been done somewhere and im guessing it has but lots of people have been asking recently so here it is.
Follow these steps so that you can edit the template,
Go to Admin CP, then Styles & Templates. Choose Style Manager then on the drop down menu select Navigation / Breadcrumb Templates. Finally click navbar so you can see the navbar code.
Find
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">
Then directly below add,
Code:
<td class="vbmenu_control"><a href="LINK URL">LINK NAME</a></td>
Now you will have a new link in your nav bar.
I hope this simple template modification helps some people.