I am a little confused about the concept in using Collanos Workspace

I created a workspace an my home machine and added some files to it. I left my machine running and went to work. At work I downloaded another copy of Collanos, installed it, and logged in using my user name (the one created on my home machine).
The login was OK. My profile and picture appeared OK, but I could not see or find the workspace created on my home machine. Do I need a separate account for each machine? Otherwise is the login for the USER or for the MACHINE being used?
1) If it is for the MACHINE, then I am surprised that my work machine allowed me to login with my home machine information and to see my profile information.
2) If it is by USER, then why can't I see the workspace created on my home machine?
Thanks for any help in clarifying this.
Doug