BAKE until the bread is crisp and lightly browned, about 45 mins. Uncover and unmold at once onto a serving plate. Preheat oven to 350F. On a baking sheet, melt margarine in oven. In a small bowl, combine 3 tbsp. Sprinkle mixture evenly over pear wedges, tossing gently.
Place wedges on baking sheet and toss with melted margarine.
Bake wedges for 20 to 25 mins. In a medium bowl with an eletric beater, beat cream cheese and remaining brown sugar until light and fluffy. Reduce speed to low and gradually add yogurt and orange juice. Place baked pears in a medium baking dish lightly coated with vegetable cooking spray. Spread yogurt sauce evenly over pears and sprinkle with grated orange rind.