Completing a Simple Checkout System

Some bug fixes and additions to an already working Checkout system. - Making total quantity of the item we sell decrease as we sell it (for example, we start at 2000, confirm an order for 100, and it goes down to 1900) - Fix some issues with different payment methods - Disable method if the quantity exceeds certain amount - Order cooldowns, to where a person can order only a certain amount per 2 days, per week,etc - After an X amount of total orders display an additional step during the checkout where users upload identification - Able to archive orders (archive exists, but only archives currently when marked as complete) - Customer reward points based on total orders, redeemable - Member management area improvements - Have a way we can search for orders, such as 'Complete Orders' from date X to date X - Fix our live delivery feed, to where it displays in chronological order properly - Allow customers to edit inputted information with approval of admin - Blacklist system, be able to blacklist customers and orders with a click. All blacklisted fields appear red on future orders - Have other users be able to access the blacklist system to manually add fields (other users, defined) - Allow admins to put notes on users and invoices. - Ability to edit user information on existing admin cp - If a customer makes a future order, and one of a few specified fields (such as IP) changes, highlight it - Allow us to check and uncheck verification information - RightSignature Integration - Facebook Credits Integration - Cancel out duplicate orders within a ~15 minute time period - Fix IPN with all payment methods, such as Google Checkout - Mailing list, based on total quantity ordered. For example, allow us to send an e-mail to everyone who has ordered a total of 200+ quantity - If someone checks out but never completes a purchase, send an e-mail asking them to complete checkout - Variable prices based on URL parameters - IP Geolocation integration - Fixing phone confirmation by MaxMind - -