Find this in navbar template:-
<span id="usercptools"><a href="$show[nojs_link]#usercptools" accesskey="3">$vbphrase[quick_links]</a> <script type="text/javascript"> vbmenu_register("usercptools"); </script></span>
Add this after:-
<span id="helpmenu"><a href="$show[nojs_link]#helpmenu">Help</a> <script type="text/javascript"> vbmenu_register("helpmenu"); </script></span>
Note: id="helpmenu" is the key. SO, change it accordingly at all places above.
Then place the below code whereever you want to place the menu.
<!-- Help popup menu -->
<div class="vbmenu_popup" id="helpmenu_menu" style="display:none" align="$stylevar[left]">
<table cellpadding="4" cellspacing="1" border="0">
<tr><td class="thead">Help</td></tr>
<tr><td class="vbmenu_option"><a href="file1.php">Link1</a></td></tr>
<tr><td class="vbmenu_option"><a href="file2.php">Link2</a></td></tr>
<tr><td class="vbmenu_option"><a href="file3.php">Link3</a></td></tr>
</table>
</div>
<!-- / Help popup menu -->
Hope this helps !!