Mac Installation Issue after torrent 3.3.5a (MAC)

Hello all:

I torrented the Wotlk (3.3.5a) today, but when I double click on either World of Warcraft (application) or World of Warcraft Launcher (application) I get the error, "The application 'World of Warcraft' can't be opened" Is there something specific I need to do the application or something to make this work?

Any help appreciated.

Please disregard. I believe I have found the solution....maybe...

Well I am still having issues. Is there a similar way to install wotlk on a Mac as you do on PC? PC seems so much easier.