Any help please?

Well, I installed l2 in the website and it all went good. But then I realised I downloaded this expansion of l2 called Valiance. So I would like to play the normal GoD and I dont know how, because when I go to GoD official site, when I click to install it just sends me to Valiance site. So yeah:confused:

Also, is there any differences between both? Is Valiance better?

Thanks for the help ^^