how to get underneath a W126?

[hedpe]

Hey all, i don't know if any of you read my screw posting. I was wondering if it is possible to get underneath the car to see the screw. The screw in the W126 is below the seat track, if you lift up the plastic flap on the corners of the raised floor where the passenger seat sits on, the screw is under there. Well it goes through a black track and then through the floor, and its stripped and i can't get it out. Is there anywhere under the car that i can see it or access it to get it out? If so how do i get to it? (how to get the panels off)