Wow thanks a tonne for the feedback! The tutorial is something we really want to go over in our next update, mainly by splitting it up and clearing up little bugbears like the ones you've mentioned.
There is even some stuff that could be a lot clearer or are simply not covered, such as moving buildings after you've bought them with the spanner tool/customise button.
Our disc is the best place to get us but I will check back here regularly, as a small team feedback like this is super useful. :D