Here are some of my old exams (the essay portion only -- not the multiple-choice questions, which I re-use and therefore don't publish). I hope they help you in your academic endeavors:
Spring 1996
Fall 1996
Fall 1997
Spring 1998
Fall 1998
Fall 2000
Fall 2001
Spring 2002
Fall 2002
Fall 2003
Fall 2004
Spring 2005
Fall 2005
Fall 2007
Fall 2008
Fall 2009
Fall 2010
Fall 2011
Update: 20 Jan 12 Expires: 31 Aug 13