I just upgraded to Norton's Firewall for OS X. Will this interfere in any way?

Currently, I'm using the basic LimeWire program to see if it isn't too confusing before getting into LimeWire Pro. Can someone explain the "monitor" and "connections" buttons for me?

In "monitor", I click "enable" for the "incoming searches" option and I see what I believe to be files. Is this accurate? If so, what are they doing there? Should the "enable" option be chosen?

In "connections", there are about 15 hosts and the status is "outgoing" on all of them. What's going on?

Also, how do I set up my firewall to only allow access to the appropriate folder?

I'm a total newbie to both the Mac and LimeWire. Please make the explanations as basic as possible.

Any info would be greatly appreciated.

Thanks.

Angel