The best way to get started with CourseWorks is to set up a short consultation with one of our Educational Technologist at the CTL Faculty Support Lab. You can reach us by phone at 212-854-9058 or email columbiaCTL@columbia.edu.
CTLalso offers workshops and open labs (mainly at the start of each semester, but also mid and late semester). Check in here for availability: http://ctl.columbia.edu/faculty/coursemancollab/
For self-starters, there is a lot of documentation on this page:
In addition, CTL has published a number of short screencasts to help faculty use CourseWorks http://www.youtube.com/playlist?list=PLFFFBC71826921C56