Chevrolet: freeze plugs???, chevy cavalier, cracked block

Question
I have a 93 Chevy Cavalier that is leaking antifreeze from between the engine and fire wall? It leaks out as fast as i pour it in the radiator. Is there a freeze plug behind the engine? And if there is whats the cost and how hard is it to fix. Do you think this problem is a freeze plug or a cracked block?

Answer
Chris;
     If there is antifreeze back there it must be a freeze out plug , there is a rubber type of plug that you can put in with a wrench , or if it must have a new  factory type plug the engine might even have to come out, it depends on the location of the plug.Have you tried any stop leak to see if that would help it ??