Quantum Gateway Module

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I'm considering a switch to CDGcommerce as my merchant account provider. In the Zencart addons section there is an "official" add-on for the Quantum Payment Gateway created by the folks at CDG. See here: http://www.zen-cart.com/index.php?ma...roducts_id=644

Can anyone shed some light on this add-on?
Do the CDG folks provide regular updates and compatibility with new versions of Zen Cart?

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Quantum is my new payment gateway, but I can't get the official module to work. I uploaded the files but Quantum doesn't appear as a payment module on the Admin-->Modules-->Payment page. It also screws up the existing modules and prevents me from configuring any module until I uninstall the Quantum files from the server.

http://www.zen-cart.com/index.php?ma...roducts_id=644
Version 2.1.1 dated 11-1-2011

Inside the ZIP file are the following:

/images/cv_card.jpg
/includes/languages/english/modules/payment/quantumqgwdbe.php
/includes/modules/payment/quantumqgwdbe.php
/includes/modules/quantumqgwdbe.php

Are there files missing for this module to work? ... Maybe I'm forgetting to configure something in the Admin panel?