Virtuozzo, с удовольствием тебе отвечу, запрос не правильный.
$res = mysql_result(mysql_query("SELECT COUNT(*) FROM `award_users` WHERE `id_award`='33' AND `id_users`='" . $user_id . "'"), 0);
if ($res == 0 && $datauser['quiz'] == 10) {
mysql_query("INSERT INTO `award_users` SET
`id_award`='33',
`id_user`='" . $user_id . "',
`id_who`='1',
`time`='" . time() . "'
");
}