What you are seeing is the Finder display on your Mac, which will normally appear if you click on the name of your Time Capsule under the Devices heading on the left side panel of any Finder window.
You can use normal Finder actions like click and double-click to display the contents of the Time Capsule hard drive.
It appears that your Time Capsule hard drive is named Time Machine
Click on Time Machine and a disk named Time Machine will appear on your desktop
Double-Click Time Machine to open the disk
All of the backups for each Mac that have been backing up to the Time Capsule are stored in a special file called a sparsebundle
Double-Click on the sparsebundle file with the name of your Mac
All of your Time Machine backups will appear as folders with the backup date
Be extremely careful with these files, and do not attempt to change anything, since any changes that you make can possibly corrupt your entire backup file. That's why Apple does not make it all that easy to view the contents of the Time Capsule drive using the Finder.
It might be a separate discussion, but while it is nice to have backups that go back many months, even years, I have not been able to figure out what a user would do with these old backups.
Another thought as well......the hard drive on a Time Capsule becomes suspect after 5-6 years of use, so It would not be a good idea to store data on the Time Capsule hard drive that you cannot afford to lose.