An addition to MartB's information:
While the Rockwell Software site does mention the 6182 in its RSView ME description, this software is now more commonly run on the PanelView Plus or VersaView CE terminals.
From a high-level view, RSView SE can be used in SCADA (Supervisory Control and Data Acquisition) applications where lots of data is passed throughout the system.
RSView ME is designed for machine-level applications. If you are familiar with RA's PanelView terminals (or PanelMates, to mention just one competitor), then RSView ME is similar to these products. It adds more features to the RA PanelView line, but I've never personally compared RSView ME features with other competing products.
Rick