What do I have to change?

[Fields]

Hello,

I have a sidebarblock to display a user's own threads. To display this, I have the following template code:

<vb:if condition="$show['member']">
<div class="block smaller">
  <div class="widget_content blockbody floatcontainer">
		<ul id="block_newthreads_1" class="blockrow">
			<li class="avatarcontent floatcontainer widget_post_bit">
				<div class="widget_post_userinfo">
				
				<div class="cms_widget_post_useravatar widget_post_useravatar">
						<a class="smallavatar comments_member_avatar_link" href="member.php?u={vb:raw userid}">
						<vb:if condition="$thread['showavatar']">
						<img src="{vb:raw thread.avatarurl}" alt="{vb:raw thread.postusername}" />
						<vb:else />
						<img src="{vb:stylevar imgdir_misc}/unknown.gif" alt="{vb:raw thread.postusername}" />
						</vb:if>
						</a>
				</div>
				
				</div>
				<div class="smallavatartext widget_post_comment">
					<h5 class="widget_post_header"><a href="showthread.php?{vb:raw threadid}" class="title">{vb:raw title}</a></h5>
					<div class="meta">

						 {vb:raw replycount} Antwort(en)

					</div>
				</div>
			</li>
		</ul>
  </div>
</div>
</vb:if>

Afterwards I set up a forum sidebar block with the following code:

global $vbulletin;
global $db;

	$sqlketnoi = $vbulletin->db->query_read("
	SELECT *
	FROM " . TABLE_PREFIX . "thread
	WHERE postuserid = ".$vbulletin->userinfo['userid']."
        ORDER BY threadid DESC 
        LIMIT 10 
	");	
while($thread = $vbulletin->db->fetch_array($sqlketnoi))
{
$threadid = $thread['threadid'];
$title = $thread['title'];
$userid = $thread['postuserid'];
$username = $thread['postusername'];
$replycount = $thread['replycount'];
$dateline = date("d/m/Y h:i:s",$thread['dateline']);

//forum name
	$sqlketnoi2 = $vbulletin->db->query_read("
	SELECT *
	FROM " . TABLE_PREFIX . "forum
	WHERE forumid = ".$thread['forumid']."
	");	
	while($forum = $vbulletin->db->fetch_array($sqlketnoi2))
	{
		$forumtitle = $forum['title'];
		$forumid = $forum['forumid'];
			
	}
	// print everything 
		$templater = vB_Template::create('block_mythread');
		$templater->register('threadid', $threadid);
		$templater->register('title', $title);
		$templater->register('userid', $userid);
		$templater->register('username', $username);
		$templater->register('replycount', $replycount);
		$templater->register('dateline', $dateline);
		$templater->register('forumid', $forumid);
		$templater->register('forumtitle', $forumtitle);	
		$content .= $templater->render();		
}
return $content;

Now the problem: I only want to show threads which can be found in one specific forum (ID: 85). I can't get this working, is there anybody who can give me some information?

I appreciate your help!

Best regards,
Fields