Hi Ali,
The LW media player's really horrible & I'd recommend using another player
But if you
really want to use the LW player, go tools > options > player > tick the box to use the LW player > Apply > ok. Restart LW & the media player should show.
If your songs aren't showing up in your library, try the tips here:
If you've updated LW and can't find your downloads!
Heaps of people are having problems with the latest updates! If you want to revert back to an older version of LW, check out the link below.
Old Version of Limewire Download
If the version that you want isn't there, send me a PM