I was looking in all the wrong places.  Everything is OK.  Sorry to be a bother, but thanks.

I just downloaded the Wordpress Juicebox plug-in for use with a Wordpress v. 3.5 site.  After I activated Juicebox using the "Plugins" panel the Juicebox Icon shows up, but there is no "Add Juicebox Gallery" option, only "Manage Galleries" and "Help".  I go to edit a post and have no way to create a gallery.  What am I doing wrong?