Not sure if this will help
Code:
<div class="standard_error">
<form class="block vbform" method="post" action="login.php?do=login" onsubmit="md5hash(vb_login_password, vb_login_md5password, vb_login_md5password_utf, 0)">
<h2 class="blockhead">vBulletin Message</h2>
<div class="blockbody">
<div class="blockrow restore">Unable to add cookies, header already sent.<br />
File: /home/nwind/public_html/jouster.com/forums/forumdisplay.php<br />
Line: 9<br /></div>
</div>
<div class="blockfoot">Culvers Shooting Page Forums</div>
</form>
</div>
Maybe he has edited this template and messed it up