The main window is where the URL is typed and the directory where the files are to be saved is specified
This window contains the basic options like the directory options and the output options. The directory options specify the way the files are to be saved (i.e) in the form of directories or not. The output options are used for logging purposes.
The download options like the total numer of tries, speed of download, time to wait for connections are specified in the download options window.
The advanced options include FTP and Recursive options available in WGET. The recursive options are used to download the files and directories recursively.The Recursion Depth option is used to specify the depth of recursion.