Dow Jones & Co. named RICHARD F. ZANNINO chief operating officer and KAREN ELLIOT HOUSE senior vice president and publisher of all print editions of The Wall Street Journal. Zannino had been chief financial officer. House was previously president of the company's international group. Peter R. Kann, who had been the Journal's publisher since 1989, remains chairman and chief executive. Kann, who is married to House, will continue as editorial director of all Dow Jones publications.