Aniway,
I work for an outsource company and have support three different broadband networks. Here at home, I have a network behind a router. I have 3 PCs and 2 Amigas on the network.
Most broadband routers do not use cross over cables. Crossover cables are designed to hook up one computer directly to another without a hub. You should hook up normal CAT5 cables from the modem to the router and router to the computers. Of course, this depends on what the router docs say.
I would advise you to set your Amiga static to the router's IPs. Also be sure and set the DNS servers.
Once hooked up and your network stack is running, test it by pinging the router's IP from the Amiga, then pinging a name site and if needed IP. Yahoo.com works great since it responds to pings. If you can ping it's IP but not it's name, it means there is a DNS setting problem.
I'm on most of the IMs, feel free to msg me if you need help.
Aim: AndreaTek
Yahoo: Tekoneiric
MSN: Tekoneiric
ICQ: 103744551
Andrea