AdminCP => Styles & Templates => Style Manager => Edit Templates =>
Expand: Navigation / Breadcrumb Templates
In the Navbar template find:
<if condition="$show['member']">
Above that add:
<td class="vbmenu_control"><if condition="THIS_SCRIPT == 'adv_index'"><a href="$vboptions[bburl]/$vboptions[forumhome].php?$session[sessionurl]"> Forums <else /> <a href="$vboptions[homeurl]?$session[sessionurl]"> Home </if></a></td>