Rosie O’Donnell made good on her word to be a phone friend. On last night’s broadcast of “Who Wants to Be a Millionaire,” the talk show queen helped out contestant Jerry Halpin, who selected her as his lifeline. The $32,000 question posed to Rosie was, “What title was taken away from Diana when she divorced Prince Charles?” Halpin and Rosie concurred that it was “Her Royal Highness.” Bingo. (Rosie had told Halpin that if she were wrong, she’d pay him the money out of guilt.) Meanwhile, the New York Post reports that some TV executives are talking up the possibility of trivia-buff Rosie becoming what could be the first-ever female host of a network quiz show. Who wants to win a million Ring Dings?