[NovoCiv]

I'm on 4.0.5 still and the forumdisplay.php edit isn't possible. The original appears as:

	($hook = vBulletinHook::fetch_hook('forumdisplay_query_threadscount')) ? eval($hook) : false;

	# Include visible IN (0,1,2) in order to hit upon the 4 column index
	$threadscount = $db->query_first_slave("
		SELECT COUNT(*) AS threads, SUM(IF(thread.lastpost > $lastread AND open <> 10, 1, 0)) AS newthread
		$hook_query_fields
		FROM " . TABLE_PREFIX . "thread AS thread
		$tachyjoin
		$hook_query_joins
		WHERE forumid = $foruminfo[forumid]
			AND sticky = 0
			$prefix_filter
			$visiblethreads
			$globalignore
			$limitothers
			$datecut
			$hook_query_where
	");
	$totalthreads = $threadscount['threads'];
	$newthreads = $threadscount['newthread'];

Removing the $hook_query_where causes database errors. I tried replacing the entire section with the "this is what your code should look like" and the forums run fine until I enable the product. When enabled, it causes this error on forumdisplay:

vBulletin Message
Unable to add cookies, header already sent.
File: /home/novoci5/public_html/forums/vb/exception/templatefatalerror.php
Line: 67

Is there a way to make this work without upgrading?