In a large bowl, dissolve gelatin in boiling water. Cool. In a small bowl, combine the crumbs, butter and oil. Press onto the bottom of a 9-in. springform pan. Chill.
In a blender, cover and process cottage cheese and sugar until smooth. While processing, slowly add cooled gelatin. Pour into crust; cover and refrigerate overnight.
For topping, in a small saucepan, combine sugar and cornstarch; gradually stir in water until smooth. Add 1 cup blueberries. Bring to a boil; cook and stir for 2 minutes or until thickened. Stir in lemon juice; cool slightly.
Transfer to a blender; cover and process until smooth. Refrigerate until chilled.
Carefully run a knife around edge of pan to loosen cheesecake; remove sides of pan. Spread the blueberry mixture over the top. Sprinkle with remaining blueberries. Refrigerate leftovers.