Sage 50 Cloud?

SUGGESTED

We just received our invoice for the year and it says that it's for Sage 50 Cloud. I never knew we had the cloud based version and am now wondering what I can access online and do from home and how I go about setting it up? I tired to log in somewhere and it said I needed to pay more money and I just paid $1100 for the year so I should assume seeing as it says Sage 50Cloud that I would be able to use the cloud based version.
I currently run everything on a desktop so I'm thinking I have to set something up with that in order to be able to access the cloud version.