Add Customer Registration System to our Flex Site

We have a website in Flex and we need to add a registration module. This means a user can log in, sign up, get an email to confirm registration, and change password. You must create the login screen, server-side script, and validation rules. You will also prompt the user to enter the address and telephone, as well as provide an address book so that multiple addresses can be saved. We are working with Flex 4.