Wotlk mac client not working

Hey guys, i downloaded the woltk mac client from the server, the launchers wont open and i can't find a "wow.exe" file in there.
I'm assuming this is a manual installation, so i found a thread in which i followed various steps.
eg. downloading patches from oldest to newest, this is where the issue came in, my unarchiver says "the contents of the file "WoW....can not be extracted with this program", so i downloaded a few other programs which also give me the same issue.
It seems i cannot do this manually, if so, can anyone suggest a wotlk mac torrent that will run without any installation after its been downloaded?
Or could suggest what the problem might be that i currently have?
Thank you.