Hi I'm new here and have a quick question. On my limewire, most of the songs/videos are in red letters. The rest are in white. What does this mean?

Red titles aren't being shared. Right click on a file > share file. Or try refreshing the page. If that doesn't work, restarting LW should do the trick.

If you're sharing a huge number of files, it can take a while for LW to load them all after starting up...so sometimes files will appear red for a little while, until LW's accounted for all of your shared files.