The Tain

Doh. Nope. That was it. I knew it was something simple. Thank you, thank you, thank you, mountainlover.

So further to my previous post, I've downloaded v1.0, succesfully (I think) run the Omnipatcher to bring it to v1.2 and then ensured that's the only version I have in my plug-ins folder. But I don't see the new models in game. I am running Myth 1.8 on an early 2015 MacBook Air (Yosemite). Do I need ...

So how do I use the new models, and patch, on an early 2015 MacBook Air?
TIA.
CaptMyron