Well, maybe that's my problem then. I've tried to set it up manually and also tried the wizard (mulitple times each). I think I have the firewall situation correct, but right now the only "networking" I can do (besides internet sharing) is share files from the Gateway when I'm on the laptop.

I'd love to just start all over again with a clean slate, but not sure if that can be done. I might be able to get someone to physically walk me through all of these steps, but frankly I'm not sure what they would do other than what you've already suggested.