We didn't do seminars this year. But look back at previous years and you can download the seminars and printed materials. Look at the "Schedule" page for each year to see what seminars were given, and the recordings and handouts are available there.
Yes, I usually run that Audio Note amp to drive the mains. Occasionally I'll run another amp, but most times I run that Audio Note.
I have my room setup pretty dialed in, so I run the same way every year. If I'm running three π or four π mains, I always put them in the same location and flank them with flanking subs, also in the same location. It makes my room sound very good.