How does it work?
This is a basic method of giving and receiving. Since you are subscribing to 10 people before you, you will then be added to that list so that other people will click on your Youtube and "SUBSCRIBE" to your account.
Demohttp://www.sub4sub.com/
Script Demo
http://sub4sub.22web.net/
Download
http://www.fileserve.com/file/b3FKcKM