Beat eggs at high speed for 5 minutes til light & fluffy or lemony color. Slowly add sugar while beating. Combine pumpkin. Add to egg mixture with dry ingredients, mix well. Spread in greased jelly roll pan. Bake at 375 degrees for 15 minutes. Remove from oven and turn out onto cloth sprinkled with powdered sugar. Roll from narrow end in cloth and cool. Unroll and spread with creamy filling. Roll up again and chill in refrigerator.
Combine all of the cream filling ingredients and mix well. Spread on pumpkin cake roll and re-roll. Refrigerate.