1. Preheat oven to 325°.
2. Coat an 8 x 4–inch loaf pan with cooking spray; dust pan with 2 teaspoons flour. Set aside.
3. Combine raisins, dried currants, pistachios, dried apricots, dried figs, and 1 1/2 tablespoons flour in a medium bowl; toss well to coat.
4. Weigh or lightly spoon 4.5 ounces flour (about 1 cup) into a dry measuring cup; level with a knife. Combine flour, baking soda, ground cinnamon, salt, and nutmeg in a small bowl, stirring with a whisk.
5. Melt butter in a large saucepan over medium heat. Remove from heat. Stir in sugar, egg substitute, 1/4 cup rum, and rind. Add flour mixture to pan, stirring with a whisk until smooth. Gradually fold in fruit mixture. Spoon batter into prepared pan. Cover with foil.
6. Bake at 325° for 1 hour or until a wooden pick inserted in center comes out with a few moist crumbs. Pierce top of cake several times with a wooden pick, and brush the remaining 1/4 cup rum over top of warm cake. Cool completely in pan on a wire rack. Remove cake from pan. Wrap cake in plastic wrap, then wrap in foil. Refrigerate 24 hours before serving.