Return of Reckoning

I just downloaded the client and all that, I am getting this message when trying to log in Data.myp: System.UnauthorizedAccessException: Access to the path 'C:\Users\kjhar\Desktop\WarhammerOnline\data.myp' is denied. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO ...

I'm just having trouble understanding how to open the game. What file do I click on exactly?

What file do I unzip when I have the torrent downloaded? I'm new to using torrents so I am a bit confused. Thanks.