webs replication script

webs replication script

I want replication script for my site ..
i mean it have form

-username
-password
-full name
-adress
-contact number
etc ..

and when user register at my site .they will get own replication site
like this
www.mysiteurl.com/username

and they can promote my site under their refferall link

please help me

Requirements

read the descreption