Spicy Gazpacho Pasta Salad

Name: Spicy Gazpacho Pasta Salad
Ingredients: 4 Tablespoons olive oil; 2 Tablespoons red-wine vinegar; 1 1/2 Tablespoon Tabasco brand Original Red Sauce; 2 cloves garlic, minced; 2 1/2 Cups chicken broth; 1 Cup orzo; 2 tomatoes, peeled, seeded, and chopped; 1 cucumber, peeled, seeded, and chopped; 1 yellow bell pepper, chopped; 1 orange bell pepper, chopped; 6 scallions, finely chopped; 1/2 Cup chopped fresh parsley; Salt, to taste; Lettuce leaves, optional; Spicy croustades, optional (recipe follows)