[Dismounted]

PHP Code:

<?php

// setup vbulletin backend
require_once('./global.php');

// clean id
$threadid = intval($_GET['id']);

// exit if empty id
if (!$threadid)
{
    exit;
}

// update views counter
if ($vbulletin->options['threadviewslive'])
{
    // doing it as they happen; for optimization purposes, this cannot use a DM!
    $db->shutdown_query("
        UPDATE " . TABLE_PREFIX . "thread
        SET views = views + 1
        WHERE threadid = $threadid
    ");
}
else
{
    // or doing it once an hour
    $db->shutdown_query("
        INSERT INTO " . TABLE_PREFIX . "threadviews
        (threadid)
        VALUES
        ($threadid)
    ");
}

?>

Put it in a file called track.php and upload it.