User, Upload, Download, Upgrage, Fileupload Control

Question

Using ASP.NET Web Application which comes with Register and Login process included.
I have included Menu Button named "My Files" so that the page would be accessible if and only if the user is logged in.

On My Files page, I have inserted Filupload Control so that the user could upload file. I am using Database to store the information as you can see in Source code provided (Table section and DataSet)
"Let me know if I designed incorrect dataset or table".

Now, I want more functionality i.e.
1) User could create Directory and then using FileUpload control, user could upload the file in the created directory.

I think it would be easy if I could have a proper file manager in which user could upload file, download file, upgrade file, delete file.

Any thoughts?

Thank you,
Shaikh Obaidullah