why cant I see the limewire player anymore everytime i wanna play a song it just plays it on windows media player

How can I get the limewire player back??

According to most of the people who would know the Limewire music player is inferior to most other music players so it might be a good thing in disguise.
Otherwise go through your options and make sure "show Limewire music player is ticked. And then go to where you have your files stored right click any file and it should give you a choice as to what player your prefer your music to be played with.