Using VB variables in custom php plugin possible?

[MajicPanda]

I've got this plugin:

ob_start();
   include('http://www.va-studios.com/forums/customphp/vigilance.php');
   $vigilance = ob_get_contents();
ob_end_clean();


vB_Template::preRegister('postbit_legacy',array('vigilance' => $vigilance));

I've added a field in my database that I need to access based on the current poster's ID in the postbit_legacy. This code displays right under the users post count on the left.

Is there any way to get the poster's ID in my vigilance.php file so that I can do a db query on it or can I not access VB variables even if I include the global.php file in my script?

Simply stated, I need to do an sql query on the database for the user in the postbit_legacy and display the custom field I added in the database.