Hi,
This issue is important to me before upgrading to the professional version!
I am running the free version on my personal blog and not sure what is wrong with the latest version 2.2.4 (previously worked on the 2.1.x version)! From control panel, I can add/edit/control all documents and files. However, no one will be able to download any file? you can check an example on this link:
http://www.osamaworld.com/my-resume/