you have to use both visual pinmame and visual pinball.
they have to be installed in separate directories.
for visual pinmame just run setup.exe, change paths if necessary ('setup paths'), and click 'install', then click 'quit'.
for visual pinball, you have to download some separate files, like the latest vpvps_334.zip scripts.
most of all, you will need tables made for visual pinmame.
i suggest you to go to http://vpforums.org/
, they have everything you might need.
just click 'getting started' in the upper left corner of the page.
you may have to register.
they also have an installation guide, that is surely better than these few explanations