Heat oil in a large skillet over medium-high heat. Add chicken, and saute 6 minutes, turning once. Combine fruit juices in a large bowl. Stir together cornstarch and 1 tablespoon juice mixture until smooth; set aside. Stir soy sauce and next 6 ingredients into remaining juice mixture; pour over chicken. Bring to a boil; cover, reduce heat, and simmer 35 minutes, turning chicken after 20 minutes. Prepare rice according to package directions. Keep warm. Uncover chicken, and stir in cornstarch mixture. Cook, stirring constantly, 5 minutes or until sauce thickens. Spoon rice onto a serving platter; top with chicken and sauce.