I /think/ that you may be confusing ports with connections.

I believe the the ports you need to reconfigure are under:

Tools|Options|Advanced

If you are behind a firewall then you are getting the error because your firewall is blocking the default gnutella port. Reconfigure LimeWire to use an available port or open up the port on your firewall.

I am happily using LimeWire at the moment.

I'm using the latest version.

There are many different problems that users have.

Mark