Operating system?, browser version you're using?

Just a guess here, but if you don't have Java and Flash installed, please click on the links below and download/install them both:

Download the full "offline" installer, then install the "Java Runtime Environment (JRE) 5.0 Update 10"


Next, install the Flash player from the link below:


Next, if you haven't try a different browser, such as Firefox, please click on the link below and download/install it, then try again.


Hope this helps.