Hello,
I haven't contributed much to MMowned so now I think I will turn that around.
First you have to download Emux Download eMux for Mac - Install ArcEmu server for World of Warcraft. MacUpdate Mac Software Downloads
Once you do that then it is a GUI which actually makes it very easy. There will be a Start Download tab and double click the item you want to download and once everything is complete then just start server and create your account.
Thanks,
Asbfaw!