Create These Admin Management Tools for an ECommerce Site

This eCommerce site will be similar to Groupon, where businesses will run offers, and if enough customers respond to the offer, its "live," and they buy, and receive a digital confirmation of their coupon. In addition, each customer will select from a list of charities, and a portion of each transaction will be donated to that charity. The actual funtionality of this site is being designed already. We are coding in perl and mySQL for the server side, and using html/css/javascript on the client side. We need help designing the admin tools of the side (managing charities, managing deals, managing customers, etc.)