There are some nice video tutorials on the eon site that helped me a lot.

http://www.e-onsoftware.com/support/tutorials/

Cornucopia doe not have many tutorials yet, but a good link list

http://www.cornucopia3d.com/classroom.php

I'd also recommend to just take a glance at the manual if you seek help on a specific functions. These are explained quite well in the manual.

Vue content creator
www.renderarmy.com