Hi Donald,
The visibility of your tree depends on the privacy settings of each profile. If you set all non-living people to public or open (the difference is just whether or not anyone can edit them), anyone can see them. For living people, the most public you can have is private with public biography and family tree (the yellow one), which will make most things visible. See my profile for an example of that: http://www.wikitree.com/wiki/Lavoie-74
~Lianne