never seen a video but have put a couple of them up. They are pretty easy, and it should have come with the directions. but basically, put the Tipi up first, then take down the center pole, then add the liner and attach to the sides with the toggles, should match up and be pretty straight forward.
I bought the liner after a few yrs of using the tipi w/o one. It's simple and effective. Just like the previous guy described. I leave mine attached at the bottom of the tipi so it's easy to erect the tipi with the liner the next time I use it.