Yes, I am only using one firewall, windows firewall, and yes, it is configured for LW. I did the port test, and it said that it was okay.

OS: XP
LW & Java version: LW: 4.12.6 Java Version: 1.5.0__06
Firewall you're using: Windows
Modem/router brand & model: Netgear, I'm not too sure about the model...
ISP: Comcast...?
Connection type: Modem
Where you connect from: Home
Are you sharing a connection with other computers: Nope
Is this your first try with LW: On this computer, yes.

Sorry if the answers aren't what you're looking for. I'm particularly new at this. x_x