disregard directions in pudding ( or Jello ) box
dissolve pudding ( or Jello ) completely in milk ( or water)
mix in yogurt
add fruit and blend well
fill pie crust and chill for 3 hours or until set.
garnish with fruit and whipped cream if desired
an alternative that's easy is: Put all ingredients in a blender on high speed until well blended then pour into pie crust