Start with the 2009-2010 form - http://www.fafsa.ed.gov/. After you enter your initial information, it should ask if you want to log your historic information.
Submit 2008-2009 FAFSA on the Web Applications by midnight Central Daylight time, June 30, 2009.
Submit 2009-2010 FAFSA on the Web Applications by midnight Central Daylight time, June 30, 2010.