Preheat oven to 350.In large bowl, beat together pumpkin, brown sugar, sugar, 3 eggs, milk, butter, flour, baking powder and cinnamon.
In another bowl, beat together cream cheese, 1 egg and sugar. Generously grease and flour a large bread pan.
Spoon a thin layer of pumpkin batter into botton of pan. Make a well in the center of bread and spoon half the cream cheese filling inside. Cover with another pumpkin layer, then swirl rest of cream cheese into that layer before covering all signs of cream cheese.
Bake for 1 hour or until toothpick comes out of bread clean.