You may suffer some port issues if you're running Acquisition also. Set them both to run from different ports. One for port 6346 & the other for another higher port number like 64049. OH ... sorry I see you've set the port number already for port 37373. I don't quite understand the UPnP settings. Sounds to me like the port mapping is actually port forwarding which is not UPnP. I"m confused there. Do you have a static ip?

BTW for OSX you don't really need a firewall. But be sure it's properly configured. I don't know about that brand Firewall configuration instructions (click on link)

BTW I edited out your personal internal ip address for security reasons. Not that people would be able to access you anyway via ...

Oh thanks... didn't see that I left that in. I'm on a dynamic IP anyways.

The only reason I am using my firewall (NetBarrier) is because I have a blocklist of IPs imported from PeerGuardian. After resetting the router to default settings and monkeying around with Acquisition/Limewire, Limewire no longer detects a firewall (and question #13 is now "no")... but still no luck. I see no attempts at making any sort of connection inside of LimeWire, as if the software is not even trying to connect. So strange.