Can't remove LimeUDP from Internet gateway

I have 2 connections showing in Network connections, Internet Gateway and LAN or High Speed Internet. I have almost constant low level activity with no clue as to what it is. If I open the advanced settings for the Internet gateway, there are several 'LimeTCP and UDP' entries which I understand are associated with Limewire which I uninstalled over a year ago. How do I edit these entries? Also, sometimes I get the following message when I try to open the settings panel.

The Internet Connection Sharing Computer is not configured to let network users control or disable the shared connection.
This setting can be changed in the Advanced Properties of the shared connection on the Internet Connections Sharing Computer.

I have 3 PC's connected to a Linksys ADSL2 Gateway. I use Win XP Home, fully upgraded on all machines. I am using 'Comodo Internet Security' firewall and anti virus.