BUMPING UP: Marie Claire editor in chief Joanna Coles has replaced outgoing senior fashion editor Eric Nicholson by promoting fashion editor Zanna Roberts. Roberts joined the magazine in October, but before that served for seven years at the title's British edition, most recently as beauty and style editor. She also was responsible for tapping Helena Christensen to shoot photographs of supermodels which appeared in a photo feature in the August issue, and at the charity event Marie Claire held last week at Milk Gallery in New York. Apparently Coles, a British transplant, appreciates those with similar roots — in May, Coles hired Suzanne Sykes as creative director to replace Paul Martinez. Sykes most recently served as art director for Britain's weekly Grazia, and helped launch the British edition of Marie Claire. — S.D.S.