never tried myself but for what it's worth... from the kenneth scott zbrush central interview: http://web.archive.org/web/20060111223501/http://pixologic.com/zbrush/interviews/scott_interview.html
http://pixologic.com/download/demo_pc.html Download the ZBrush 1.55b Demo Note: a demo version of ZBrush 2 will be released at a later time. Z2 can be purchased and downloaded by visiting our e-store. Sounds like piracy is the only option. Although you certainly could get the feel of the interface from 1.55b and see…