I have spoken with two teacher's this week about two different Animal Science CDE's and the same hurdle came up in both instances.
Our experience may help you in the future.
They were looking for past CDE exams on the website.  Like I myself have done in the past, we looked at just "CDE exams online" under CDE's.  There may be many or there may only be one or two. 
But, go right below there to "CDE exams in MS Word".  There you will find many more to help you with your CDE teams.
Ricky Wheeler
Area Animal Science Teacher
Central Region - Agricultural Education
101 North Main Street
Room 318
Swainsboro, Georgia 30401
478/595-5351 (c)