If the router supports UPnP, enable it & choose the UPnP option within LW's tools > options > advanced > firewall config. See if the brick wall goes away.

When you port forwarded before, did you use these instructions?
http://www.portforward.com/english/r...R/Limewire.htm

Did you set up a static IP address first? You'll need to. Go through those instructions again. Remember that the port forwarded within the router, LW's listening port & port number in LW's 'manual port forward' box must all be the same number.