You can find my C7 series here: http://www.markbremmer.com/3Bpages/carrara7Pro.html

I also have some more advanced tutorials there under the Dark Arts heading. 

I haven't done a C8 version yet because the improvements to Carrara were predominately 64 bit upgrades and some more "fringe" enhancements targeted at some very unique usages. The core (albeit wide) functions of Carrara have remained unchanged.