[noppid]

Try something like this on hook forumhome_complete.

PHP Code:

$templater = vB_Template::create('header2');
$header2 = $templater->render();

vB_Template::preRegister('FORUMHOME', array('header2' => $header2) ); 


You need to cache the template too on hook cache_templates.

PHP Code:

if(THIS_SCRIPT=='index')
{
    $cache[] = 'header2';
} 


That should get you started.