50772 Free Download PHP Script

I need someone who is good with php to make me a little script that allows a user to download my software from my website. I want the user to have to enter their name and email address. Then an automated email is emailed to the email address listed and the user can click on the link in the email message and download the software. The link is only good for one download and cannot be copied into the browser and downloaded over and over again. Basically you can not download the executable file in less you add a valid email address. I must be able to login online and view, edit and delete all the Names and Email addresses on the list. I will also be able to send an html or text email to all the Names, emails in my list. This script should fit into my website design to look smooth and seamless. You must be able to communicate well in English and provide contact via MSN Messenger. Payment via Scriptlance Escrow and released upon completion.