Problem with wow.exe

Hello!
First of all I want to say sorry for every mistake I'll made in this thread since English is not my first language.
Anywas, I downloaded the mop expansion (Yes, from this page) and when I try to turn on the game nothing happens and after few secunds this window pops out. (Yes, I cilicked wow.exe)
http://i.imgur.com/7N2N6Fm.png

Anyone know what might be the problem? I really need Your help.

1) close your Torrent client and move your WoW folder away from your Torrent's download destination
2) now right click on WoW folder> Properties> remove "read-only"

I had the same problem and after digging on the forums I found this thread http://forum.warmane.com/showthread.php?t=327048
It works perfectly for me now. Hope that helps!

Everything works fine now :) Cheers!