1. Didn't check yet.
2. Suppose that means Outer Marker-Inner Marker. (ILS). Marker Light is top of the center 4 warning lights.
3. Dunno
4. There are 3 models in your FS2002 folder, one of them is clean, one with a belly tank, one with 3 tanks. No way to drop tanks in FS2002
5. I think CONE refers to the Nose cone, which seems to be extended after takeoff. Dunno whats stabilized for landing means...maybe it means you have the right AoA and good sink rate.
6. Dunno, but it would be cool.
7. Last HUD mode from top to bottom is landing mode, that should offer you a center circle with the info. See the Instruments Manual for more details on that HUD mode.
Hope that helps a little, until Support arives.