You need to alter this part in
shoutbox_max.php:
if ($is_auth['auth_mod'] && $is_auth['auth_delete'])
{
$ip_url = append_sid('shoutbox_max.' . PHP_EXT . '?mode=ip&' . POST_POST_URL . '=' . $shout_row['shout_id']);
$ip_img = '<a href="' . $ip_url . '"><img src="' . $images['icon_ip'] . '" alt="' . $lang['View_IP'] . '" title="' . $lang['View_IP'] . '" /></a>';
$ip = '<a href="' . $ip_url . '">' . $lang['View_IP'] . '</a>';
