Prepare pudding mix according to package directions, using a whisk and 2 cups fat-free milk; let stand 5 minutes.
Combine spreadable fruit and amaretto in a small bowl, stirring with a wire whisk until smooth; set aside.
Cut cake into 1-inch cubes. Arrange half of cake cubes in a 2-quart trifle bowl or straight-sided glass bowl; brush with half of fruit mixture. Spoon half of pudding over cake. Repeat layers with remaining cake, fruit mixture, and pudding. Sprinkle with toasted almonds. Cover and chill at least 30 minutes.