1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
2) Exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).
3) You must do a 'blind' re-write, it must be new code, that results in similar functionality.
All web browsers, Opera, IE, Mozilla based ones.