Gift Card Program Added to Charity Site

Hi, I'm planning to purchase a charity website soon. It's Joomla based software. Here is live demo link to the website [login to view URL] What I'd like to do is to add a feature on the main page where people can purchase charity e-postcards. They are similar to e-cards. Please visit this link [login to view URL] and follow throught a few of the steps to see what I'd like to have done. Here is a brief summary. 1). Person will be able to purchase an e-postcard on the site and customize the postcard then send it to someone. 2). That person will receive the e-postcard. 3). That person will then be able to redeem the card at the site and donate the money to the charity of their choice. I need someone who will be able to 1). change my joomla template to accomodate this feature 2). design the the e-postcard script so that person will be able to receive personalized e-postcards Again, it's quite difficult to explain. So, please visit the [login to view URL] site link above and hopefully you'll have a better idea of what I'd like to do. Thanks