I get the same error as above. I replaced the navbar link with a generic link to get to vbsupport (I simply call it "Site Support" on my board):
Code:
<td class="vbmenu_control"><a href="vbsupport.php$session[sessionurl_q]">Site Support</a></td>
I went in, and all that came up was an error saying that I was not authorized to create tickets, even though I was just accessing the vbsupport main page, not creating a ticket.
I went into the settings and checked "Yes" for "vbSupport Unregistered Access." This allows me to get to the main vbsupport page and create tickets, but now I do not have permission to view the tickets once I've created them. I get a "87accordlxi, you do not have permission to access this page. This could be due to one of several reasons..."