I decided to give Concrete5 a try, then quickly decided it wasn't for me. So I tried to delete the folder named "Concrete" from my domain.
Well, everything went away except a nest of folders, and here's what my FTP error says when I try to delete the folder:
550 /mywebsitename.com/concrete/libraries/3rdparty/securimage/database: Directory not empty.
But the database directory is empty. How can I clear things out? Granted, I don't think it's hurting anything, but I'm new (still just a dreamling) and I want to keep my room tidy here inside the DH house.