from Owen Astrachan's site - http://www.cs.duke.edu/csed/ap/  you can find
FR questions at the AB level from 2003 (AB1 and AB2) and 2002 (AB2 and AB4)

You can also find very good translations at the A level for 2003 (A1 and A2)
as well as 2002 (A1 and A2)