20:05Heart and SoulBeing JosephBBC World Service Duration: 27 minutes Sat 25th Dec 2010, 20:05 on BBC World Service OnlineAvailable for over a yearListen nowStep-parenting has become far more common, but has it become any easier emotionally to bring up another man's child?GenresReligion & EthicsFormatsDocumentariesBrandHeart and Soul Source: BBC Online