Simon,
First, you do need to specify where you want a folder created, because
like any os, if you were lets say at the root level and you had
administrator rights, you could create a folder at the root level. You
absolutely do not and I mean do not want to get into the habit of
junking up your file system. Unlike windows, everything is carefully
setup in the Mac file structure and true windows apps have gotten
better, but some still have this need to creat folders at the root
level and there really is no reason to do so.
Now, lets say your in your home folder under Users, you want to creat
a folder at the root of your own personal Simon folder, this is what
you do. You have will find the one thing on a Mac that I can't really
explain so hope someone else will chime in. Normally if you are at the
desktop, you can hit command+shift+h which takes you directly to your
home folder, this is not a VO specific function. Now if you do
absolutely nothing else after performing the command, you will be
sitting at the root of your home folder, at this point you simply
press command+shift+n and you will immediately be presented with a
dialogbox where you type in the name of the new folder; private docs
in your case.
Now, why I say do nothing upon entering your home folder, cause as
soon as you move the arrow keys or VO-keys to navigate, you've
highlighted a folder and if you press the command for new folder, you
will creat a folder within the highlighted folder. Let me clarify
this. You want a folder within documents called private docs, you
would just navigate with VO or the arrow keys to the documents folder,
do not enter that folder, just highlight it, and finally command+shift
+n and type in the new folder name. Now you'll have a folder within
documents called private docs.
You are suposed to be able to press command+option+control+f4 to
unhighlight a folder, but doesn't work for me for some reason, thus is
why I pointed out those steps on avoiding highlighting something once
you enter the home folder. Now maybe someone can correct me cause
maybe I have forgotten the command.
In any case, this should get you started and hope that helped.