What is going on? i upgraded to 14.14.10 and i could not hear my music anymore... When i click it it goes on the player but it does not start... The little bar stays in one place.

Are you using the LW player? If so, it's not very good & it's probably worth your while to disable the player within LW & use another one

But...if you really want to use the LW player, try this:

Delete 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.
LimeWire Pref Folder in Vista

Hi,
I am new to this. I have used limewire in the past and had no problems after the download to be able to listen to a song but now I can't get anything when I click on the little note beside the download and I don't understand why. I've not changed anything. I do have VISTA but I had it before the problem. Any help you can offer would be much appreciated. Thanks!!