Installing Addons (Duxa, HighRes, etc) on MAC

[DevGrousis]

Sorry if this is somewhere on the boards, but i've searched as thoroughly as I know how, and I cannot find instructions anywhere..

I'm playing on a MacBook Pro, and want to add Vegas Custom DuxaUI, and the HighRes files, from http://p99.yourfirefly.com/, to my setup.

I've downloaded and unzipped the files into separate folders, in an outside location, and i'm unclear of where to place these files. I don't want to just shoot in the dark because I don't want to mess something up and have to do the mac install all over again.

Can someone give me a quick step by step, so I don't screw up?

Thanks guys!