Don't worry about the change of thread name. One of the other mods did that. We've got a policy of trying to improve thread names so they are more meaningful if people are going to read them back. By the way, if you're a pro user you can keep using the version you have until after your 6mths of rego is up, although you can update to newer versions during that time.
Sorry to hear our suggestions haven't helped so far. We might need to go thu this bit by bit. What connections devices do you use? Please specify brand & model no.'s of your modem & router devices. Where are you connecting from: work, home, school, etc.? Have you asked your isp in your new area whether they block p2p use for any reason?
Are you sure your OSX firewall is turned off; see:
http://www.limewire.com/english/content/firewalls.shtml IF you normally have it turned on.