1/4 cup sugar, 1/8 teaspoon salt, 1 cup dark raisins, 1/2 cup golden raisins, 1/2 cup dried apricots, chopped, 1/4 cup dark rum, 1/2 cup chopped almonds, 2 1/2 cups candied fruits, 1/4 teaspoon ground ginger, 1/2 teaspoon baking powder, 1/2 teaspoon ground allspice, 1 1/4 teaspoons ground cinnamon, 1 1/4 cups all-purpose flour, 3 eggs, 1 teaspoon vanilla, 1 teaspoon Sweet ‘N Low zero calorie sweetener, 1/2 cup margarine, softened