Preheat oven to 400 degrees.Place phyllo shells in cups of a minature muffin
In a small bowl,combine fig preserves, walnuts, cream cheese,and blue cheese, stirrinto combine. Spoon mixture into phyllo shells.Bake for 10 minutes.
In a small saucepan, bring vinegar to a boil over medium heat. Reduce heat, and simmer for 8 to 10 minutes or until vinegar is reduced to 1/3 cup. Cool for 10 minutes. Spoon vinegar reduction over tarts. Serve immediately.