Looks like you can't accept incoming connections (like chat).

You still should have been able to Browse Host. Were you able to watch the progress of the download ?

Anyway, to check if your firewall is blocking incoming gnutella traffic, go to Apple Menu->System Preferences->Sharing->Firewall->New, then scroll through the list until you can choose "Gnutella/LimeWire (6346)"

When checked, that will allow your computer to receive incoming connections. Your downloads and uploads should be much better too.

(Still, that shouldn't stop you from getting search results)

Are you tired of this yet?

Cheers