Show username from a certain thread

[kh99]

I think I'd create a plugin using hook parse_templates, and code like this:

$million = $vbulletin->db->query_first("SELECT username FROM " . TABLE_PREFIX . "post WHERE postid = '5'");  
if (!empty($million))
{
   vB_Template::preRegister('header', array('million' => $million['username']));
}

then in the header template, use {vb:raw million}.