pour melted butter into 9 X 13 inch baking pan. sprinkle crumbs over butter and mix well. press firmly and evenly into bottom of pan.
beat cream cheese until smooth. add sugar, eggs and vanilla, beating until well blended and set aside. stir jam in jar until softened. spread jam evenly over crust, sprinkle with blueberries. top with cream cheese mixture.
bake 30 min or until slightly puffed. cool completely in pan before cutting into bars.