Visual Editor Consultants does not sell the Visual Editor.
It is part of the MCNP5/MCNPX package which can be purchased through the Radiation Safety Information Computational Center (RSICC) .
The current RSICC release of the Visual Editor is version 24E - released September 2011. Development of the Visual Editor is ongoing and beta versions are developed following each release. The latest beta version can only be obtained by attending a Visual Editor workshop.
To get more information on the MCNPX Visual Editor, Click Here.
You can order the code here at the RSICC site:
http://www-rsicc.ornl.gov/CustomerService.aspx