Add Features to a PHP/Smarty Web Page

I have customer who has an order status page on their e-commerce site which needs some additional functionality and I need some help with the programming. Whenever a shipping user changes the status of a customer order (e.g. to dispatched, part-dispatched, etc.) we need a log of who the user was, which order/product they modified and the date/time this was done. This log should be stored in a database table and a simple reporting capability be provided (report by time period and/or user name). Existing code can be provided on request but do not have a test server in place yet. Screenshots can be found at [login to view URL] If successful this could turn into a regular opportunity to provide ongoing support and updates.