There are a few reasons why I didn't fix it:
1) matt7043 did it already for mod selector
2) gainb already did it with a full client
3) I've been busy IRL
4) I don't really pay attention to fame and gold so I forgot it wasn't showing up.
Either way, to unpack .rar's in OSX you can use UnRaRX, Stuffit Expander or Unarchiver
If you still want the client I'll do it, although it'd be faster for you to download either of the above software than waiting for approval.
EDIT: Well, UnRaRX's url is censored for some reason, you can just google it though. For what I've read it's one of the best, I'm not a mac user though so I can't talk from experience.