"Need more sources"
 

its coming up for every single song i try to download! how can i fix it?

Do the files sit connecting for ages & then need more sources? That sounds like fake files. Try downloading ones with less than 10 sources, or a modem source...does that help? Also, search for just album title or just artist name...that can help too.
Check out the stickies below for more info & tips;)

Fake files showing up in search results
How to find music

yeah ot says connecting for aaaaaages and then says that. its never done it before... only since we had wireless internet a few days ago! so i was thinkin maybe it was something wrong with my settings or sumthin

You could try deleting LW's preferences & see if that makes any difference, make sure LW's properly closed first. See points 2 & 3 below for some instructions (if you've used older versions of LW before, you might have a preferences folder in either location).
Fixes for LimeWire

This will kill all of your settings within options...you'll have to go back through & reset things afterwards.