That is not correct from what I'm seeing.
When I look in the Repository under User Homes I see an entry for 'administrator' which is the Domain Administrators user home. I can see the files I created under My Files in there as well.
When I try to copy any of the files in My Files to somewhere else in the Repository, it brings up a windows to allow you to navigate to where you want to copy the file but when I click on Repository it doesn't open up and show any subfolders. And if you just copy to 'Repository' it creates a 'copy of' file back in My Files.