Well I dont know how many people are interested but here is a working autosignup with authorize.net as a billing api, make your adjustments to the autosignup.php for your own server, add your authorize.net user and pass key to the process.php, and in the email.php change the email addresses to your choice of address, and your good to go. I am still working on the multiple packages in the mainsite database dump, but if you are setting up a single package its good to go. -- and if you need a 3rd party billing for authorize.net email me I also provide that as a service.
Thanks Tommahawk for the autosignup.php script. And Thanks to my php programer in Austrailia Doc Chris