[Plugin: WP e-Commerce] Getting Auth.net CIM to capture more data

I currently have a wp-ecommerce implementation working using the Auth.net CIM gateway. My issue is, when it saves a customer’s data, it really just stores the user’s email address & credit card info.

I need this to store their billing address, phone number, etc. I poked around in the files for a little bit and modified the XML bit in ‘Authorize.php’ and added in the proper fields under “billTo”, but it didn’t seem to have any effect. Am I even looking in the right place? Has anyone else come across this?

I posted this over on WP-Ecommerce forums as well but I know nothing usually gets a response over there… Any help would be appreciated.

https://www.ads-software.com/extend/plugins/wp-e-commerce/