Php script for registration, login, create profile etc

I need a basic script built so that people can register and create a profile, login and edit their details. The profile needs to have the following. First name Last name Date of Birth Occupation About Me Why I want to do this? Photo This will create a profile with the photo up the top and their name First+Last name undearneath. Then their age in years (based on date of birth), occupation, about me, why I want to do this. The user should then be able to edit their profile. All users should then be listed alaphabetically (based on their first name) on the same page. It should contain First name+Last name and a small version of their photo. The sign up should also give them access to a members area.