Your best bet would be to create a custom Vbulletin page with all the functions included. Then echo out these statistics. Once these statistics are echoed out, you can include that PHP page onto your desired PHPpage/forum.
On a more complicated side-note, you can use the CURL function to pull data off of an external website source.
First of all, you need to enable curl support for php. To do this, remove the comment (to enable curl operation) from php.ini file
To get a remote file executed, we need to pass http request from a php file. CURL is used for this purpose. Here is a simple example that you can try.
PHP Code:
<?php
$ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL, “http://www.YOURFORUM.com/FILE.php”);
curl_setopt($ch, CURLOPT_HEADER, 0);
$file_contents = curl_exec($ch);
curl_close($ch);
// display file
//echo $file_contents;
echo “<pre>”;
print_r($file_contents);
?>
Let me know if this helps!