Preheat oven to 425°F. Bake shrimp according to package directions and keep warm. Slice baguette into as many slices as you have pieces of shrimp. Use one of the garlic cloves to rub over one side of each slice of bread. Brush the garlic rubbed side with olive oil. Set aside. Finely dice remaining garlic. In a medium mixing bowl, stir together the tomatoes, 3 tablespoons olive oil, garlic and basil. Salt and pepper to taste and set aside. Working in batches, add the baguette slices (oil side down) to a large hot skillet and cook until browned around the edges. Remove from pan. To Serve: Top each baguette slice with a small spoonful of the tomato mixture and a piece of the shrimp. Garnish with a basil leaf. Serve immediately.