Contractor Website

I have a website which I want to be a place where members will be able to rate a contractor for home improvement services. In return this site will allow contractors to find more leads for their services from members. What I need done is creating either a php program or asp program that will confirm email when members sign up and will allow contractors the ability to log in as well. When the visitor signs up I want his location to be remembered every time he logs back in and as well as services requested. For the contractor I want a form that will be sent to a database which will allow me to store and find contractors by their distance from a certain zipcode. I have more info that I can provide if you are interested. But that is the majority of the program that I need. I will probably request more work soon after if you do a good job.