IPN paypal integration

Please dont bid unless you have experience with paypal and its merchant [login to view URL] to this link [login to view URL] and view the demo program for the website payments [login to view URL] gives you an idea of what i am looking for. I have a dating site up that charge a monthly membership fee. I would like to change the way to payment processing is setup. It is currently setup so customer have to buy credits each month. I want to process (and track) payments through paypal and automate the process. I have a admin panel setup that where you can set the [login to view URL] users have the option to apply for a trial membership or gold membership. Customer will have the option to signup for free trial membership or gold membership. Require them to go through the paypal process and give their credit card if they signup for gold or trial membership. Trial membership will be 21 days and after that charge subscription 14.95 for the month. After the 21 days, automatically switch them to gold members. I want to use the paypal IPN program. You will need to create a page that store the data. After they go through the process of giving their cc information through paypal. Route them back to my website. Preferably their profile page. The PayPal integration procedure can best be accomplished my activating the IPN (Instant Payment Notification) link inside paypal. The IPN works like this, PayPal Asks you for a Return URL on your site that PayPal can direct the user to after payment is completed. When payment is complete, PayPal passes the customer and the details of the transaction back to the IPN link you designated. If the link you designated is setup to handle the data that is returned by PayPal, then the script can reflect the Payment info that PayPal passed on to the IPN page. So in other words if your programmer codes a page to receive and process the data from PayPal then the task of changing user status and groups will be automated. ## 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 Unix