212748 PHP Class - Maybe in Joomla

PHP Classroom I am looking for quotes or a discussion by IM on this classroom software. I would like to package the software into a file that can be sold and distributed if possible. I could be done with Joomla if this is easiest. Here are the specs. User End I want the user to be able to - pay for an account, then create a username and passord - when the user logs in, they see lessons created by admin in chronological order. Much like a real class, the user cannot see the lessons until a specified amount of time has passed. - Users should be able to go back and see previous lessons. - Users should be able to view comments from admin on homework. - Users should be able to complete a ten to 20 questions multiple choice test. Admin - Admin should be able to create as many lessons as needed, and be able to specify the dates the lessons will be released after the user enters the class. - Admin should be able to create 10 to 20 test questions. - Integrated billing and affiliate program using paypal.