Cant Wont Start =( Possible Engine Frozen, How to solve ?

Evening folks, I have a Rover 25 1.4 W Reg. Drove the car on Saturday 1st Jan 2010 went to drive it this morning (5th Jan 2010) and the car wont start. All I get is clicking noise. Ive opened the bonnot and squeezed the rubber pipes toward the front of the engine bay and can feel a slush type ice inside. Im guessing the car engine is frozen. I dont have a garage to ge the car inside. Im a member of RAC but havnt called them cause Im unsure if they will be able to do anything if the pipes have ice in them. Ive also added some anti freeze today but an unsure of the last itme it was done (please excuse me im a new driver) Is it best to just leave th car engine to thaw when the weather gets better ?? Its been suggested to me that it maybe just a battery problem.