Is it Anaorphic or not ? No.
Is it Interlaced or not ? Whatever you shot. You should know. You set the camera.
Is it Square Pixels or not ? Yes.
What Sequence settings should I use for editiing ? If you don't know, import some footage and right click on a clip and use "New Sequence from Clip"
In your playback settings, use Display First Field or Display Second Field, not both. And set playback resolution to Full.
