When a user first logs in, the application is in 'Explorer Mode'.  This is made up of the following components as shown below. 
NB. The other mode is the Search Mode. 

Menu Bar

The options shown on the menu bar at the top of the screen will depend on the group to which the logged on user belongs.  A user who is in the admin group will see all of the options shown below.

    

Tool Bars

Below the Menu Bar you will find the 'Tool Bars'.  When you hover over any button on the tool bars, the Status Bar at the bottom of the screen will tell you what the button is.

        

Address Panel

To the right hand side of the Tool Bars is the 'Address Panel' which tells you your current location.

    

Folders & Views Panel

Below the Tool Bars, the 'Folders' panel can be found.  Here you will see a list of Folders and Views to which you have access.

    

Filelist Panel

The right hand side of the screen is the filelist where the folders/files contained in the current Drive are listed.

   

This panel tells you the size and type of each file and when it was last modified.  The arrow tells you by which column the files are sorted.  To sort by a particular column, click on the column header.

Status Bar

There is a status bar at the bottom of the screen.  If you hover over a button on a Tool Bar, the status bar will tell you what the button is.  In the example below, the button is 'Copy File' .

The status bar will show the image below when requests are being processed.