Adapting an installer for a package

THIS IS A SIMPLE SIMPLE JOB FOR ANY CODER.. PLEASE READ!!!!!!!!! I have a normal script with an install, the install script is a normal install script, for example you put in your host name and email and so on. What I want is this and please read and don't bid without reading I want to run mulitable instances of the script, so instead of someone putting the host name in and host name and uploading the script for every single user I want to use the script, I simply want the insall script to some how copy the script into a new directory for example say uder users, (so instead of asking directory name it would ask for username, which would be the directory name) and in the back ground setup a brand new script for each user of the same script, so they would enter - Username - Password - Email The same things the installer asks for now except for DB details, so the user thinks they are signing up for something, when infact they are installing a script in for example [login to view URL](directory) READ. THIS SHOULD ONLY BE A TWO HOUR JOB. So one master script to be coppied on each install, with one added feature the user gets an email, dear user your account has been setup and your username and password is and login at..