OK, as far as the power cable goes, things are settled. It was just a mass confusion, unfortunate on all sides. I was just reminded that because I signed up for a power cable audition, so the cable somehow got to me. There was not a single word of how it came to me. So.... I had long forgotten that arrangement. The cable came with no note, sort of out of the blue sky. That was why I asked in this thread. I never got any contact information of this gentleman Dave. The cable sat around. Just happened that I was asked to help setting up a small system by a friend who's in Taiwan much of the year, so I gave the "idle" wire to her.
Suddenly, I heard from Dave several days ago, stirring up a storm in a way. It was just a confusion situation. Dave had tried to contact me in AudioCircle, he said. But, since our group was booted out of AC, I had been into AC only several times, never knew he was trying to contact me. The whole fiasco wasn't totally clarified until these couple of days really.
Now, Dave has forgiven me for this incident. This I thank him for. We're moving forward.
Case closed.
Shek