osCommerce - CreditCard/Sign Up/Checkout Customizations

Hello, If the work done is of excellent quality I will use again for future projects. I’m looking for an osCommerce/PHP expert who speaks English, will communicate with me on a daily basis regarding progress, is qualified to handle this project, and can provide websites that they worked on for references. I want to change the way a customer signs up for an account and make changes to the checkout pages. I want to get my website to work so a customer can add multiple credit cards and it will save the information in the database with encryption, so next time the customer logs in they have the option to use the saved credit card. I will provide example of websites of how I would like my signup/new account/checkout pages to work like. I won’t be using an internet payment gateway like [login to view URL] or verisign payflow pro; I’ll be using a software payment gateway that’s why I need to save the credit card information on my website. I will like the first time they enter a credit card number for an order to save the CVV2 number plus all the other credit card information for that order in the orders table, and to also save the credit card number info without the CVV2 number in a new table that will save the credit card info for the customer (this will be the credit card info that the customer will be able to edit/change). I only want to save the CVV2 number only when the customer first enters it in, or makes a change to the CVV2 number in the orders table only because this is where my program will download the orders from. I want to be able to save the credit card name, credit card number, expiration date, CVV2 number in my database. I think I can do this already with the osCommerce credit card module, but I think it might need a slight modification. I will like the credit card number and CVV2 number to be encrypted in the database. If you use an encryption key for the encryption I will like to be able to change the key every couple of months so there will be a new key used for the encryption (maybe I can do this in the admin section). I guess I will be able to use the encryption key to decrypt the credit card information, right? What type of encryption will you use? I will like to give the customer the option to add/edit/change their credit card information somewhere under their "My Account" page or maybe during the checkout process on my website. If there is already a credit card number in the database when the customer goes to edit/change their credit card information I will like the credit carder number to be masked except for the last 4 digits of the card (for example: xxxxxxxxxxxx1111), and to not show anything in the CVV2 number input box. Thank You And Happy Bidding!! olimits7