Try updating the Java engine on your machine. Also make sure you selected the right country on the upper corner. As the final step, make sure you are using Internet Explorer as this website works better on that browser.
did you select Malta on the top? Did you do the warranty transfer under your name?.
Since you bought it from a retail store it might still be under the store name.
It still requires you to do the change. What is it that you need to download from there?
did you get any discs with the system? they sometimes are inside the drivers CD.