Preheat oven to 350°. Place a greased 9-in. springform pan on a double thickness of heavy-duty foil (about 18 in. square). Wrap foil securely around pan. Place on a baking sheet. In a bowl, mix cracker crumbs, sugar and cinnamon; stir in butter. Press onto bottom of prepared pan. Sprinkle with cinnamon sugar. Bake until crust starts to brown, 6-8 minutes. Cool on a wire rack. Reduce oven setting to 325°., In a bowl, beat peanut butter and milk until combined. Spread over cooled crust; set aside. In another large bowl, beat cream cheese, sugar and vanilla until smooth. Add eggs; beat on low speed just until blended. Pour over crust. In a small saucepan, stir together preserves and lemon juice over medium heat until preserves have melted. Spoon mixture by tablespoonfuls over top. Cut through batter with a knife to swirl. Place springform pan in a larger baking pan; add 1 in. of hot water to larger pan., Bake until center is just set and top appears dull, about 1-1/4 hours. (Center of cheesecake will jiggle when moved.) Cool cheesecake on a wire rack for 10 minutes. Loosen sides from pan with a knife; remove foil. Cool 1 hour longer. Refrigerate overnight, covering when completely cooled. Remove rim from pan.