It looks like your skin has removed the navigation from the navbar template (skinners do the dumbest things sometimes). If you look, your template starts with "<!-- breadcrumb, login, pm info -->". However, looking at the source of your forum home page the navigation is up way, way higher than that before "<!-- Banner Rotator by Redline -->". I'm guessing it's been moved to the header template.
Further, they are using background images instead of text, and they've completely removed the calender (or perhaps you have it disabled).
Their nav section looks like this:
HTML Code:
<tr>
<td style="width: 199px;"><img src="RaidArena/misc/links_left.gif" alt="" width="199" height="43" /></td>
<td style="width: 72px;"><a class="homeover" href="index.php"> </a></td>
<td style="width: 102px;"><a class="usercpover" href="usercp.php"> </a></td>
<td style="width: 109px;"><a class="registerover" href="register.php"> </a></td>
<td style="width: 117px;"><a class="membersover" href="memberlist.php"> </a></td>
<td style="width: 67px;"><a class="faqover" href="faq.php"> </a></td>
<td id="navbar_search" style="background-image:url(RaidArena/misc/links_bg.gif);"><div align="left"><a class="searchover" href="search.php"> </a><script type="text/javascript"> vbmenu_register("navbar_search", 1); </script></div></td>
</tr>
So you would want to put your code under the line <td style="width: 102px;"><a class="usercpover" href="usercp.php"> </a></td>.
However, you'll need to create a matching image for it, since your navbar uses images and not text.
My guess if you'll find this code in the header template.
It looks like a pretty poorly built skin IMHO, even if it does look okay in the end. I recommend you get all the hacks installed on default VB, then pay someone to create a skin for you that won't wreck them.