is there a gallery of trees ?

hello there, i am new here .. hope this is the right place to post, i want to ask if there is a gallery of trees ? and another question, is there a tutorials of how to use the software ? step by step ?

I am not a developer of TreeIt. There is gallery section on the TreeIt page, http://www.evolved-software.com/treeit/treeit
With some extras on the child page here: http://www.evolved-software.com/treeit/treelibrary

I have never seen documentation or tutorials, but the software is simple enough for anyone who has existing 3d knowledge or are familiar with 3d tree problems. I guess that is not enough for the beginner. I suggest opening and study the examples in the trees directory. Play around a bit, maybe.