For salsa, in a small bowl stir together the papaya, cucumber, tomato, cilantro, jalapeno pepper, lime juice, and oil. Let stand at room temperature at least 15 minutes to allow flavors to blend.
Meanwhile, thaw scallops, if frozen. Rinse scallops; pat dry. Halve any large scallops. Lightly sprinkle with salt and black pepper.
In a large nonstick skillet cook garlic in hot margarine over medium heat for 30 seconds. Add scallops. Cook and stir for 2 to 3 minutes or until scallops are opaque. Use a slotted spoon to remove scallops; drain on paper towels. Serve the scallops with salsa. Makes 4 servings.