...sted.--the rebel guerrilla Mosby entered Fairfax Court-House this evening, and captured a number of sutlers' wagons, together with stores and other property valued at nearly ninety thousand dollars.-- General Grant , from his headquarters at Vicksburgh, Miss., issued a general order regulating the transportation on the river steamboats.--the bombardment of Fort Wagner was continued to-day, by the Ironsides and t...