New "Fashion Police" co-host Melissa Rivers, who said in May she planned to scatter her mother Joan Rivers' ashes in New York, London and Wyoming, Tuesday revealed that she did so in that Western state last month. "Coop and I took our annual family vacation to Wyoming," Rivers, 47, told "Entertainment Tonight," referring to her 14-year-old son, Cooper Endicott. "[The] first without my mom, and scattered some of her ashes there so we can still be together every August as a family." Rivers also told "E.T." she had no elaborate plans for Friday, the first anniversary of her comedy-icon mother's death at 81.