everytime i try to open the game it shows an error.

http://imageshack.us/photo/my-images/864/sistema.png/
http://imageshack.us/photo/my-images/827/sistema2.png/
http://imageshack.us/photo/my-images/593/driver.png/
http://imageshack.us/photo/my-images/847/javau.png/
http://imageshack.us/photo/my-images/823/firewallpermissao.png/
http://imageshack.us/photo/my-images/263/sistema3.png/

thats my system, tryed everything
I don't know if i have to install the game, as I didnt find any "Download now" button in first page.
I downloaded the client that the post said to download but its more or less 600kb, so LOL?
if i have to install anything else ...