Is NOTHING available for Mac?

I used to play WoW a lot years ago and a friend told me about Warmane just today. Every time I choose which expansion to download it says it isn't available for Mac. Im running the latest Mac OS on my 2 year old iMac. Any suggestions or am I pretty much out of luck?

We have a cataclysm client and a WOTLK client floating around somewhere on the forums. However, we do not natively support a MOP launcher for Mac.

Any idea where to find the WOTLK client? That's the one Im after.