I used to have the old Limewire until I dowloaded Limewire 4.12.3. Since I have had the newer version, every single time I try to download a song, it keeps saying "Connecting..." until it goes to "Needs More Sources". I have tried everything and all the advice that is offered on here. I do have a firewall, but I have gone through Limewire's instructions on how to allow the Gnutella Network to connect. I have also gone through the tips in this forum on how to get better searches. I have also taken the advice to choose a song that has not as many hosts and it still doesn't work. I don't understand what is going on. It also allows people to download from me, but I can't download from anyone else. Help would be much appreciated here! Thank you!

Backclick on the file that needs nore sources and select find more sources

If you're getting 'need more sources' every time, try deleting the preferences folder when LW's closed (points 2 & 3 below)
Fixes for LimeWire

Deleting that folder will kill all of your settings within options, you'll have to go back through & reset things afterwards!