You mean a link to it not a tab? If yes then edit the templates of your style and find vbcms_navbar_link template, edit it now find this in the template:
Code:
{vb:raw template_hook.vbcms_navbar_end}
Paste this above:
Code:
<li><a href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum_Post" accesskey="2">{vb:rawphrase getnew_tab}</a></li>
See if that is what you want

.