Hi theputz,

You're saving songs to C:\Program Files\Limewire?? That's a bad idea...if you uninstall LW then your songs are gone. The default saving location is C:\Documents and Settings\your username\Shared...that's a safer option. In LW tools > options > saving & change your saved folder back to that default location.

If that doesn't work, 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.

Once you have a better saved folder location, see it things transfer to your media player properly again.

Re the Norton internet worm protection popup, see if this helps: http://www.gnutellaforums.com/218895-post6.html