Automated Order XML Processing w/ Paypal IPN

Hello, I need a PHP script written that automates order submission at a shipping company through the Paypal IPN service. I am attaching a sample PHP script provided by my shipping company/service. I have 8 to 10 different products (sets of several SKU's, actually) that the script will receive orders for and automate submission. Each product is sold one at a time directly through Paypal "Buy Now" buttons - not through a shopping cart. If possible, this script will need to work with all international orders. For Canadian orders, the script may have to translate a provinces into abbreviations - for example, "Quebec" into "QC". The script needs to work perfectly. I'm willing to pay more for experience with Paypal IPN and XML. There is a "test submission URL" but I'd like something that will be up and running quickly without problems. Also, the script will need to email me if there are any errors processing an order. Thanks, Keith ## 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