Name the replaced by where date of vacancy is 31 december 2008 where position in table is 1st
create table table_17039232_3 (replaced_by varchar, date_of_vacancy varchar, position_in_table varchar, PRIMARY KEY (replaced_by))
select replaced_by from table_17039232_3 where date_of_vacancy = "31 december 2008" and position_in_table = "1st"