Tom's Dad has discovered that Ellen's got a criminal record, just as she's having her tag removed. Ellen's discovered that she's got a grandfather, just as she's returning to Leeds.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.