Those are the default HOOKs in the template "navbar".
If you miss it, simply open the Template and insert the codes.
Example:
$ad_location[ad_navbar_below]
is the last entry in the template
Code:
</if>
$template_hook[navbar_buttons_right]
<if condition="$show['member']">
<td class="vbmenu_control"><a href="login.php?
and
Code:
</if>
$template_hook[navbar_buttons_left]
<td class="vbmenu_control"><a rel="help" href="faq.php$session[sessionurl_q]" accesskey="5">$vbphrase[faq]</a></td>