[ElfMage]

Yes, what happens is that the no permission message is shown from the wiki's path, so all relative images/links would point to the incorrect location.

An alternate solution is to add a plugin (Admin CP > Plugins & Products > Plugin Manager > Add New Plugin) for the hook named error_nopermission.

In this plugin, add the following PHP code:

PHP Code:

if (THIS_SCRIPT == 'vbwiki')
{
   global $vbulletin;
   exec_header_redirect( $vbulletin->options['bburl'] );
} 


What this does is that whenever a no permission error will be shown to the user from the wiki, the user gets redirected to the forums' home page.

This will only happen in the case you describe where guests are not given view access to the forum.