I can make a quick small one via template edit if you'd like
Ok, in your navbar find:
HTML Code:
<td class="vbmenu_control"><a href="memberlist.php$session[sessionurl_q]">$vbphrase[members_list]</a></td>
And replace with:
HTML Code:
<if condition="is_member_of($bbuserinfo, 5,6,7)"><td class="vbmenu_control"><a href="memberlist.php$session[sessionurl_q]">$vbphrase[members_list]</a></td></if>
This will show the memberlist link in the navbar to ONLY to mods, supermods, and admins
I'll come up with something a little better later