Questions and Answers for students

please .. read all the project then bid Questions and Answers for students and teachers at first page will be login page for student and teachers when student want to create account he has to choose in which class he want .. and there is will be coast for each class he can choose multi then when he complete his information then he has to pay by 2checkout then he login he will be able to see the class he paid for inside class he can ask the question he want by posting a thread .. and he can just see his threads not others then the teacher can add the answer - every teacher has his class .. which determined in the control panel ( the permissions ) - teachers can see his students and he can send messages to the students -students cant see others - teachers accounts created just from admin panel - in admin panel you can add students too and determine the permissions - in admin panel you can control class -admin can see everything happens -student can pay for a month or more - admin can see the teacher profile ( info and how many time he answered and posted ) -student can rate the answer -if you can add option to make me able to add other language that will be great ( to understand it : think like vbulletin ) please dont make high bids