http://www.macrumors.com would be a more helpful forum for this kind of problem. I had problems with my airport card and they answered the question in about 30 seconds. Turns out I wasn't pushing hard enough. The Apple support discussion pages might help too.
I had my Mac at work yesterday and I saw all of the printers on our Novell/Windows network.
Sys Preferences -> Printers and fax -> And I think there is a + button in that menu - click it and you should see all the printers on the network. These directions may not be completely accurate - I'm on my windows workstation at work today, and I'm trying to explain from memory, which is a little burned out at this point. The printers and fax menu is where I found the networked printers though.