How many entries are there for team coxy for the air date of 24 january 2010 and team guest captain of gail porter?
create table table_25816476_2 (team_coxy varchar, air_date varchar, team_guest_captain varchar, PRIMARY KEY (team_coxy))
select count(team_coxy) from table_25816476_2 where air_date = "24 january 2010" and team_guest_captain = "gail porter"