It almost looks like he added a block to the pulpit that may have been intended for the tack
line.... but I'd suggest you not use that if so.
You can attach the tack
line to the same fitting for the
jib tack, mount a block there and run the tack
line through the block and back to somewhere within reach of the cockpit. This will allow you to raise and lower the tack of the sail as you vary your apparent wind angle (lower closer to the wind, higher as you bear off)
The plastic thingy attached to the tack (corner marked "T") is meant to go around the forestay with a furled headsail as the support for the tack. These collars are pretty standard on these sails, but some prefer to fly the tack free off the deck as you can get more projection that way as you go deeper downwind. You can probably look into that once you get the hang of this sail.
Otherwise, the sail attaches pretty much like a headsail, tack to the bow, sheets aft to the cockpit. Your
spinnaker halyard should lead fairly and be above the forestay so that you are not chafing the halyard on the exit box in the mast or the headstay.
The lazy sheet should also go around in front of the headstay so you can gybe the sail in front of the boat.
Enjoy!