Ah, that's true. Btw, if you're looking for tutorials you could try out these, they're really helpful and taught me the app in only a few hours
ZBrushCentral - Video Lessons In Zbrush (cannedmushrooms style)
The downside with them though is that you'll have to download an app called Veoh TV to watch them, and you can't watch the whole movies on the webpage, they're just short verisions. So once you got Veoh, you have to hover the video, and a small bar will appear in the top with the link "Watch full verison" or something like that.
Then you'll be directed to the Veoh homepage, and after that, you'll have to click some button there again to start the movie in the app you got, and see the full verison.
Sorry for the half-arsed explanation, but I don't quite remember how it was
Cheers!