Random Quiz that writes text score to text file

Flash developer needed to build a random flash quiz. I need a quiz that will randomly select e.g. 10 questions from a batch of about 50, without repeats and keep the score (1 point per correct answer) Questions are yes or no. I need the ability to simply enter different questions and the answer choices.(XML file preferred) After the person has answered all the questions or one per screen, they need to see the correct answer. at the end of the quiz they need to see their percentage score and the score needs to be sent to a simple text file.(possibly with Java) This site has a great of example of what I'm looking for but it doesn't have the selection of only 10 questions out of 50 and the code is hard to edit and it doesn't have a function to send to scores to text file. [login to view URL] Thanks