Except for the one time the tree was crooked (hey, it was free), I've never had an issue with getting it in the stand. Not exactly rocket surgery. If you have a tough time, get one of these:
http://www.amazon.com/Emerald-Innova.../dp/B0008F78J8
I bought one 14 or so years ago but lost part of it in the move 8 years ago

But it's the easiest way EVER to put up a tree IMHO.