I'm having the same problems.
Lynkeos works fine, but doesn't seem like a really good solution. I can open .avi's in Autostakkert using the wineskin wrapper created by William Winters http://williamwinters.com/registax-and-autostakkert-on-osx.
But the images fail to align and come in a orange hue that doesn't match what I see in Lynkeos or in the .avi
I love the ASI120mc-s but the support for OS X is so spotty it's frustrating.