Thanks very much for the tip on the expander confusing the .app packaging, Keith -- I had not thought of that. I will rename the installer file to something more reasonable for a future release. I did not read your request before releasing today's beta, but I'll bet sure to do it for the next one.

I have nothing fruitful to add on the firewall topic, unfortunately. LimeWire will actually do a bit of scanning for ports in the 634* range, but will not be able to connect if it doesn't find anything open.