In a large bowl, using a mixer, beat your cream cheese until smooth. On low speed, add in condensed milk and vanilla, set aside.
In another bowl, beat heavy cream until stiff peaks form.
Add in the cream cheese mixture to the heavy cream and whisk together until well incorporated.
Spoon about half of your whipped cream mixture into a standard sized loaf pan.
Remove the chilled berry sauces from the fridge and spoon each half of them over the whipped cream mixture in the loaf pan and sprinkle half of the Oreo cookies bits on top.
Cover with your remaining whipped cream mixture, and top with both remaining berry mixture.
Use a butter knife to drag/swirl your blueberry and strawberry-raspberry mixture into your cream mixture top with other half of Oreo cookies bits.
Cover pan tightly with aluminum foil, and stick it in the freezer for about 6 hours.