Stir boiling water into gelatin in medium bowl 2 minutes or until completely dissolved.
Spoon in ice cream, stirring until melted and smooth.
Refrigerate 10 minutes or until slightly thickened (consistency of unbeaten egg whites). Spoon into crust.
Refrigerate 3 hours or until firm. Just before serving, make jack-o-lantern face on pie with whipped topping, candy corn and licorice.
Store leftover pie in refrigerator.