my McAfree secruity wont let some of limewire files go thro its firewall can u plzz help....ty

Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? If yes, then the problem is either McAffee or your modem/router's internal nat firewall. Did you configure McAffee as suggested here (advisable not to have 2 active firewalls b/c they can interfere with each other); Firewall configuration instructions (click on link)