Dissolve jello in 1 C. boiling water. Add all fruit (undrained). Mix well. Pour half of mixture into 8" square pan. Leave remaining jello at room temperature. Chill refrigerated jello about 1 hour or till firmly set. Spread sour cream over mixture. Pour remaining jello over top. Chill till completely set.
* Breakstone's is the best nonfat yoghurt for this.