Banner Exchange

A Link Exchange or Banner Exchange system developed in C, PHP (or PERL with Mod_Perl) and utilizing MySQL. I want it to be similar to LinkExchange.com. Unlimited categories for users to target their campaigns, customizable exchange ratio, allow users to purchase credits through their password protected account area. Paypal integration. (I will provide the Paypal Scripts/classes, -Perl or PHP- you just need to integrate into your code.) Banner uploading with size control. Cheat protection, speed, security... Paypal integration, automatic backup. Web based administration. I don't want graphics or design. Just provide simple html interface (templates?) I can modify. I will take care of the front-end. I want the backend. ## Deliverables Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. Tested, demonstrated. Complete copyrights to all work purchased. ## Platform Linux/Apache All 4+ versions of major internet browsers (IE, NN). ## Deadline information Speed, security and stability very important.