1. Stir boiling water into gelatin in large bowl for at least 2 minutes until completely dissolved.
2. Stir in orange juice. Cool to room temperature.
3. Just before serving, pour into punch bowl. Add cold seltzer and ice cubes. Place scoops of sherbet and fruit slices in punch.
Prep Time: 15 minutes
Cook Time: 5 minutes
Total Time: 20 minutes