Need help with something on Nav bar template please

[tinkerbell]

I have installed the vjukebox hack but only want it to show on the nav bar in certain forums or for certain usergroups. Please can someone help me with the 'if condition=xxxxxxxxxx' in the nav bar code below

<if condition=xxxxxxxxxx>
           <td class="vbmenu_control">
<a href="jukebox.php?$session[sessionurl_q]">Jukebox</a>
</td></if>

so that the xxxxxxxx relate to the usergroup id or forum id concerned.

Thank you

Karen