Moving songs to Playlist
 

I'm brand new to everything including computers, and struggling. I apologise in advance for being this dim (it’s taken an hour to get on this forum). I'm on windows and the free version of Limwire. I’ve downloaded some songs which are listed in the "library". On the left are listed files saying "shared”,” saved files" (both have the same songs in I chose) and, incomplete files" My aim is to select one from either the "shared" or "saved file” and put it in the "playlist" at the bottom of the screen. Tricky one eh? I highlight the song, right click one of those files so I can see the "to playlist" and left click that and Presto! The whole lot goes to the playlist. I'm loosing the will to live now. Please can you help? The other query is the "shared" and "saved files" appear to do exactly the same thing could someone explain the difference advantage/disadvantage of them clearer please than the livewire user’s guide. I am eternally grateful in anticipation.
David