Save the files pst-node.sty|.tex|.pro in a directory, which is part of your 
local TeX node. Then do not forget to run texhash to update this node
if these packages are new to your TeX distribution.
For more information  see the documentation of your LaTeX distribution 
on installing packages into your LaTeX distribution or the 
TeX Frequently Asked Questions:
(https://texfaq.org/#installing).

pst-node needs pstricks, which should be part of your
local TeX installation, otherwise get it from a CTAN server, f.ex.
http://mirror.ctan.org/graphics/pstricks/

The documentation was build with a temporary file to
insert the pages from the original documentation via
the command \includepdf[pages=..]{pst-docfull}. 

%% This program can be redistributed and/or modified under the terms
%% of the LaTeX Project Public License Distributed from CTAN
%% archives in directory macros/latex/base/lppl.txt.

hvoss@tug.org