PHP PayPal IPN Download System

I need a PAYPAL IPN system developed for managing my ebook and website template selling businesses. The need the following things supported: - once a transaction goes through the user is emailed with download links - downloads are tracked - sales are tracked - support for multiple downloads from one sale - store files to download either in the database or in an admin user specified folder - admin setting for how long download links are valid (24, 48, 96 hours) - admin setting for paypal email Please store this information in the database (as well as what you determine): - Product (price, small image, large image, description, long description... etc) - Product Category (id, categoryname, ParentID (0 = none, id of parent if nested), OrderID (for using in Order by clause of categories under the same parent) - transaction information Please store the times, IP, and referrers for all downloads See attachment for a couple of ideas on what the screens should include. Code is to be completed in PHP and mySQL. With your bid please provide an estimate of how quickly this can be finished. Thanks ## 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 written in PHP and mySQL to work on windows or Linux