I am using the March 18th, 2006 by Vger from the addons contribution located here.
This version changes the credit card information to post variables on the confirmation page and they never get loaded in to the order class. This makes all references of order->cc_data to be null fields and the info is never loaded into the database. I had to go to the check_out process page and change the the variable definitions to get the info I wanted stored.
original checkout_process code:
'cc_type' => $order->info['cc_type'],
'cc_owner' => $order->info['cc_owner'],
'cc_number' => $order->info['cc_number'],
'cc_expires' => $order->info['cc_expires'],
Updated checkout_process code:
'cc_type' => $_POST['cc_type'],
'cc_owner' => $_POST['cc_owner'],
'cc_number' => (substr_replace($_POST['cc_number'], ' xxxx xxxx xxxx ', 0, -4)),
'cc_expires' => $_POST['cc_expires'],
Vger had indicated in a post that he would be updating the code to not store credit card information due to PCI compliance. I had assumed he had made the change.
jeff