Make sure that you don't have a Windstream firewall causing problems.
http://www.gnutellaforums.com/connec...t-connect.html
It's not a good sign when the port test doesn't work, it can sometimes mean that an ISP is blocking certain ports. Did you try a few different ports in the range that I gave you?
Go into LW's preferences folder (named LimeWire), hover your mouse over the gnutella.net file...what size is that file?
You could try port forwarding for your router. The instructions are here.
Port Forwarding for the Efficient(Siemens) Speedstream 5200
Don't forget the step of setting up a static IP address first. LW's listening port , port in the 'manual port forward' box & port forwarded within the router setup should all be the same number.