Taking pictures or video from the installing of those B-column brackets (posts #6 to #9 on first page of this thread) is super difficult as the location is tight and cramped. Fitting a tool, hand and camera in there will he difficult and even if done, viewer understanding the picture orientation will still be difficult.Unfortunately i can't understand very well how to fix the brackets. Could you post some others pictures? Or a video?
Once you have your roof at hand, and the brackets, you can mock them up on their location (test also that the bolts will go actually in to threads in the roof before installing) and you will get it.
Identifying between left and right bracket is a subject of trial and error with the roof on car, once you identify those mark it so that you do not need to test this every single time you install.
For this winter I am also considering picking up much shorter M8 bolts for easier install. I do not quite understand why the roof came with 5cm (~2") of threads where half of that would do just fine. The location of the bolts is very cramped and they are difficult to screw, and the lenght of stock bolts is just excessive. In the roof itself the threads are not that long so that does not justify such a long bolts, either...
I'll be installing my hard top this weekend, our cabrio season here in Finland is pretty much over. But we have a wonderfully bright Autumn colors on trees (if there is sun instead of rain & clouds, that is).