Drain fruit & reserve liquid. Boil water in a saucepan; add gelatins & stir until dissolved. Add enough water to to reserved liquid to make 1 3/4 cups; add to dissolved gelatin. Pour into a 9 x 13 dish. Put gelatin dish in refrigerator until slightly thickened. Then fold in fruit. Chill until firm. In a bowl, combine cream cheese, sour cream, sugar, & vanilla; beat well. Spread over gelatin & sprinkle with pecans. Chill until set. Cut into squares & serve.