Log in to ezwebin as admin
Create new folder "Getting started"
Click on "Gettings started" in top menu
Create a new folder named "Files"
Click on "Files" menu item which should appear in left menu
Click on "MultiUpload" icon in webin toolbar
Click "Select files" button
Select 3 files from you local hard drive and click "Ok" button (Name of button might differ, dependent on browser/operating system)