@dark: Yeah, sequence storm OST is an item in your library so this is how you launched a player by hitting on it enter.
Your window looks as it should. Sadly if there games in your library you will see a mess, as there mixed stuff like games here and there when browsing with browse cursor. ALso there are some achievements / other things. How I am working with it? Just using my arrow keys and letter to find the game I want to play (if needed as everything is on my desktop and Steam is making shortcuts automatically) and using the steam window just to install games I've bought or didn't play for some time and wants to get back to something.