5-7 days in the fridge (not the door), 3 months in the ice cream freezer (the one attached to the fridge) and up to a year in a deep freezer. Kellymom website has all the guidelines.
I was told 7 days in fridge and 1 year freezer
I was always told by my health visitor 5 days in the fridge (make sure you keep it at the back of the fridge and not in the door), 5 months in the freezer, also to defrost breast milk by putting it in the fridge over night.