The best way to restore a file or folder is to use one of the download features.
On the "Desktop Manager", click on "Your Files" to open the "Desktop Explorer" window. The top window contains items in your Account and the bottom window contains your local computer/hard drive. In the top window, browse for the file/folder you want and than select "Download". Choose where you want to download the file/folder to and than select "Ok".
For information on accessing (restoring) your data using the Website Application, click here.