No Search Bar
 

I am trying to download music, I have done it only the first time I was able to get into limewire, but I don't have a search bar. Where do I go now to find the music?

Do you mean that there's no text field to type your search into?

Try deleting LW's preferences folder when LW's properly closed. See point 3 here & also point 2 if you've used older versions of LW in the past (there could be a folder in either location).
Fixes for LimeWire
This will kill all of your settings within options, you'll have to go back through afterwards & reset things. If you're not sure of your settings, go through LW's tools > options & write them all down, so that you can reset things later.