http://www.rootschat.com/links/01ncu/ gets you the birth registrations...
e.g.
Birth of JOHN COLE on 17 March 1916
Group Registration ID 46542
SR District/Reg Area Kilkeel
Sex Male
Mother's Birth Surname FEGAN
and
Birth of KATHLEEN COLE on 08 July 1913
Group Registration ID 1245143
SR District/Reg Area Kilkeel
Sex Female
Mother's Birth Surname FEGAN