To install Selview 6.0, run the appropriate MDAC file for your OS, then run the Selview.msi installer. The installation wizard will guide you through selecting an installation location and confirming installation. After installation, enter the key number provided by the developer in the registration window to proceed to the login page, where you can log in as the administrator using username SELADMIN and password 'S' or as a regular user with username SELUSER and password 'U'.