I looked up all kinds of recipes yesterday for sweet and sour things, and decided to list the most prominent ingredients, then go ahead and just do it. 

                       Sweet & Sour Chicken and Shrimp

Thaw 8 oz. extra large frozen shrimp in a bowl of water and remove their tails, set aside.  Slice 2 chicken breasts into 1" cubes, set aside.  Cook 2 cups rice according to package directions, set aside.  Heat 2 tblspns. olive oil and 2 tblspns. canola oil in deep frypan and saute the chicken, adding and stirring as necessary:  1/2 medium onion, chopped; 1 carrot, peeled and cut small; 1 stalk celery, trimmed and chopped; 1 clove garlic, minced; 1 small jar green chilies; 1/3 cup catsup or 1 small can diced tomatoes; 1 20-oz. can pineapple chunks, drained.  Reserve the juice and add to it; 1/3 cup white sugar, 1/4 cup brown sugar, 1/3 cup vinegar, 1/2 cup water, 1/8 cup soy sauce, and stir in 2 rounded tblspns. corn starch.  Add to pan, stirring well.  In a small separate saucepan, briefly fry the shrimp in 2 tblspns. butter and season with garlic salt to taste.  Add the shrimp and butter to the pan, stir well.  Add 1/4 tsp. ground ginger root, 3 tblspns. honey, salt if desired, lemon pepper to taste, more water if necessary, and hot sauce if that's what you want.  Keep stirring and adjust seasonings.  Serve over rice.