You shouldn't download limewire for each seperate account, you should just create shortcuts from the one account...This thread will explain what you should do...
http://www.gnutellaforums.com/showth...ewire+accounts
With the WMP icon showing for all you mp3s, that just means that you have WMP as your default media player to change that follow these steps...
Right click on a file in you shared folder (outside of limewire)
Select open with
select choose program
select the player you want
and tick the box that says always use this program for this file type...
Hopefully after you fix up the LW installs, your itunes should transfere the songs over successfully....