authentication problem

I have a small business website, www.softtax.com. We sell books dedicated to taxes on software transaction. I need someone who can do some coding to help fine tune the website. I have a problem controlling access to a portion of the website. Access is currently limited via a separate log in box. When you get to the appropriate page: [login to view URL] you are supposed to type in your email address and it is checked against a separate text file. The file consists of the following field: your email address, an expiration date, and the number of times a day you are allowed access For example: email address,7/6/2006,3 The rationale to limit the number of daily access is to prevent large companies from buying one copy/subscription and then sharing it. My current web designer has allegedly implemented this using some php (?) code. Yet every time I try it, there are no limits to the number of accesses I can do with the same email address. I have also discovered that if I gain control to the controlled access part that if I then go to the home page and click my way through, that the, the authorization page is bypassed incorrectly. What I think I want done is (1) implement the access so that it is limited to a set number of times a day (the exact number can be individually set for each customer) and (2) I cannot bypass the authorization page when I start from the home page. I expect to have full ownership of any code created in that (1) I can use it on my website without limitation and (2) in the event I sell my company, the code goes with the website. ## 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 I use dreamweaver MX (version 6.1) on a macintosh to maintain my website. So whatever code you create must be compatible with my system. The code must be able to run on all computers out there as I have no idea what software/hardware my customers are using to access my site.