There are some helpful web sites. Try (not in any particular order):
http://www3.sympatico.ca/peter_budgell/
http://homepages.strath.ac.uk/~clas16/~fyfe/ansys/joints/catapult.html
http://www.ansys.com/education/resources.htm
I'd also suggest the '/Ed' version' - it is limited in capabilities...