The PSIfusion User Interface has two available options prior to logging in: Login and About Fusion.
Prompts the user to enter a User Name and Password to gain access to PSIfusion document queues and other features.
This link is located at the bottom of the screen and consists of a popup window with version and license agreement.
Once a user is logged in PSIfusion will find any documents sent to your queue or documents you've previously been working on. If nothing is available a window will popup indicated your queue is empty. For more information on indexing workspace and user options see the article links below.