Code by Kevin has introduced Manpower 6.0 (http://tinyurl.com/4yaxes), an upgrade of the program that provides a three-pane interface for reading Unix documentation pages on Mac OS X.
The new version sports a refreshed user interface and smoother overall performance. To install Manpower, download the latest version. It can be installed anywhere on your Mac.
The download is a 30-day demo; you can purchase a license for US$29.99 to use the program past the 30-day trial period. Manpower 6.0 requires Mac OS X 10.6 or higher.