The Stephen Sondheim song book, Putting It Together, has fallen apart, due to Carol Burnett's back injury. Producer Cameron Mackintosh has had to postpone the May opening date to later this year or even 1995 . . . Today the Duchess of York's Budgie comes out in comic book form . . . And tonight Nottingham Chief Constable Dan Compton becomes the first serving police officer to have a weekly TV slot, the immortally-titled 'A Brief from the Chief' on Central TV's Crime Stalker . . .