Another पॉटर्मोर सवाल

This probably gonna be an ongoing thing with me asking questions, until I get the hang of the पॉटर्मोर website.
But I'm wondering, how do आप advance to the सेकंड book? I have finished the first book and JK Rowling कहा her congrats and whatnot, but I can't हटाइए on; I'm still stuck on the last chapter of book one.
Is there something I have to do first, like gain और house points या something?