A tute would probably be a great idea, cspear :)
Thing is, I know I have a lot to learn, and I have tried to learn - but I don't use Poser every day, and I use it for fun, to create renders I like.
Since I've been using 2010, that fun has gone down to nearly zero and I don't create renders I like. 
Textures (even new ones) look flat and washed out, dry and brittle. Textures that should have color end up looking pale and unhealthy.
I use my own lights. (I rarely get the result I want from any packaged lights, and there are usually far too many in a package anyway.)
It's not even as much as "I don't understand it". I do, to a degree, but I don't understand why if I follow instructions, I get something completely different as a result.
My monitor is calibrated properly, too. :)

I'm just glad I'm not the only one who has struggled to the point of giving up, with GC.

Silke