A few options for you. First, take a look at File --> Open Example Worlds and look through the 9 beginner tutorials to get yourself oriented to the software. That should cover a lot of the basics. Then, obviously there's a lot of great information here in this forum that you can search through, or ask new questions! Finally, GeekAtPlay is an avid user that has created a lot of excellent tutorials that you might find useful as well - take a look here: http://www.geekatplay.com/world-machine-tutorials.php (thanks Vlad!)
i'm pretty new to world machine and am trying hard to get in it. why dont they do some good tutorials for their engine, i mean, we are paying good money for it and they cant even manage to add some simple tutorials to the most features ? :?