Northwest Immigrant Rights Project v. USCIS settlement announced:
"The application period will be open for one year for individuals who meet very specific criteria, including entering the United States on a nonimmigrant visa prior to January 1, 1982. The application period will commence on February 1, 2009 and end on January 31, 2010. Application instructions are contained in the settlement agreement."
http://www.uscis.gov/files/article/order_final_judgment_3nov08.pdf