1. Dissolve 1 package raspberry gelatin in boiling water. Pour into 9 x 13 x 2-inch pan. Chill until firm. 2. Combine packet of unflavored gelatin with cold water; set aside. 3. Mix half and half in saucepan; bring to a boil. Remove from heat. Add softened cream cheese and beat until very smooth. Add vanilla extract, nuts and unflavored gelatin mixture. Stir until gelatin is dissolved. Cool, then pour over the chilled layer. Chill until firm. 4. Drain blueberries (if using canned); add enough water to blueberry juice to make 2 cups liquid. Bring this to a boil. Add remaining raspberry gelatin package; stir until dissolved. Cool this mixture then stir in blueberries. 5. Pour this mixture over cheese layer and chill until firm. Decorate with sliced strawberries and a few reserved blueberries if desired.