Guest pass allows you to play 7hrs of the game within 14 days of activating the key.
Go HERE to redeem and download client. (it's a 7Gb download though)
You will also need to create a battle.net account if you don't already have one.
First PM from a regular member here on x64bit gets it.
![:bluerip:](http://www.x64bit.net/site/board/public/style_emoticons/default/smile.png)