For installation please see http://vinux.sourceforge.net/vntex/vntex.html

How to compile these test files:

latex testlatex
latex vntest1
latex vntest2
latex vntest3

tex testplain
tex vntest4
tex vntest5

To use pdftex instead of tex, replace `latex' by `pdflatex' and `tex' by
`pdftex' in the above commands.