My cape gooseberries went over in early November when the frosts came, about Bonfire night, I think. Once they get hit by frost, they go soggy and generally that's it.
If the fruit is very small, it's unlikely to ripen off the plant - I find that if the fruit is at least grape sized and is yellow/orange and the husk is very dry, then is you keep them in a place where the air can circulate freely around them, they will keep for a month or so, but green ones just go rotten instead of ripening.