Credit card number remove - Oscommerce

PLEASE READ ALL BECAUSE I need 2 things. 1. MySQL Command to remove the credit card info on orders that have Processed, Cancelled OR Shipped Status. 2. I need a collaboration(detailed below), this means you will deveolp the collaboration, I will install it. You will tell me which code to add to which file and what to upload and I will do it (THIS BECAUSE I WILL NOT PROVIDE FTP ACESS TO MY SITE OR DATABASES) COLLABORATION DETAILS. I would like to add a REMOVE CARD INFO button to the edit order page so I can remove the Credit Card info after the order has been processed. This should erase 8 digits in the credit card so that it looks like this: EXAMPLE 4444XXXXXXXX3333 The X should replace the numbers in the database as well as the displayed numbers in the admin. Please after reading type "logging" in your bid to know you read all. Please only bid if you have good communication skills and can deliver and work with me. I am not an expert so you will need to be patient with me while I install this.