Paypal IPN integration

This should be a simple project for anyone wioth paypal experience. This project should use paypal IPN and PHP plus MYSQL Background : we have two things that we sell on line 1) software via download link and key code and 2) physical goods. Currently, both are done via buy it now buttons. This needs to be enhanced as follows: 1) Software - write order to mysql , email copy order to sales dept email , email customer detailing download link and key code ( key code can be listed with product name and download link in a mysql table) 2) hardware - write order to db , email copy to sales, email confirmation to customer. All emails should be customisable by template order db should have a basic admin area in which to viwew them. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform php / web / mysql