I need someone who can write a php program for me and will be available later to add on to it. I have attached a file - please glance over it before you bid. I also have some php code from Authorize.net for it as well as the zipcode data, and the state/country data that will be used in this project. These can be sent once I pick the winning bidder. I am hoping to keep it down to $200 - but am willing to pay $300 (can discuss). Payment will be by escrow or Paypal when done. I prefer someone who has instant messenger of some sort so we can quickly resolve questions while the project is being worked on. I am urgently needing to get this done. If you do good work and get it done within reasonable time - I will use you again for not only many more modifications and additions of this - but other projects. So impress me!