Combine crumbs and margarine; press onto bottom of 23 cm springform pan. Bake at 180ºC ., 10 minutes Soften gelatin in water; stir over low heat untl dissolved. Combine cream cheese, sugar, cocoa and vinilla, mixing at medium speed on electric mixer until well blended. Gradually add gelatin, mixing until blended. Fold in reamining ingredients; pour over crust. Chill until firm.