A. My system still works fine. Great even.
B. I still don't have wifi-radar on my Network (or System) menu but I use wifi-radar from terminal root daily without problem.
C. I just tried VASMCC (which I don't use) and it works fine (I no longer get the 'FAltMain': error).
D. I have no clue what I may have done to fix that. I suspect my computer is haunted by a friendly ghost.