hi, I have noticed that where I have a square faces you have triangle, I know I could fix masnually, but is there something I might overheard in the video to get it right from the start?
Also alt click does not work for me on the same version, I am using double click as alternative .
It's better to have a square than a triangle, so you're better of than the instructor. You can always watch the video again if you feel you missed something. Watching things twice also solidifies the knowledge much better.
For your Alt select issue, there's a couple of solution in this thread:
https://cgcookie.mavenseed.com/community/19637-alt-tool-to-select-edges-not-working