php 5-page site renovation

I need help cleaning up and modifying an existing php site that allows ecommerce and allows generation of a user license code (see [login to view URL] in attached, for my description of how to do this). After collecting data, an API php wrapper goes to the bank and then bounces info back for saving in a mysql database. I have commented details in the attached specs that should be followed. Good php and html coding with good commenting is a must. Attached are the pages for the site with much of the php code and logic already in place (somebody else had started, but I didn't find their commenting sufficient and ultimately I decided to change the data being collected). I have removed proprietary information (e.g., licensing algoryhtyms) from the attached, but will provider this to the chosen bidder. The pages are sequenced, starting with [login to view URL], then going to [login to view URL], [login to view URL], etc... This should remain as such. End Users should never be able to browse into a page without coming from the one before it. The end product will, of course, sit behind a firewall and on a secure site that is currently live (and to which I am not able to provider the coder access). In other words, you'll have to come up with your own testing options though it should be fairly straight forward from the existing code. ## 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 browser