Mysql Error Number : 1064

[davidw]

Just a thought... try changing this:

$posted = $vbulletin->db->query_first("SELECT userid FROM " . TABLE_PREFIX . "post where threadid = " . $vbulletin->GPC['threadid'] . "  AND userid = " . $vbulletin->userinfo['userid'] . "");

to this:

$posted = $vbulletin->db->query_first("SELECT userid FROM " . TABLE_PREFIX . "post where threadid = " . $vbulletin->GPC['threadid'] . "  AND userid = " . $vbulletin->userinfo['userid'] . ";");

Can you try the query itself (with substitutes) in phpmyadmin?