Once you select a report, a report window will appear:
The report is displayed in a resizable, scrollable window. To control the report, you can use the toolbar buttons at the top of the window:
Back and Forward allow you to view the previous contents of the window, just like a web browser
Parameters pops up a dialog box allowing you to change the information presented in the report:
See the help for the individual reports for details of options available.
Export allows you to export the contents of the report as a HTML file for later viewing or printing.
Close closes the report window.