Hate to bring it up again, but this is another really good case to utilize the WinXP "Transfer Files and Settings Wizard". That tool still might be able to "lift" the drivers from the old 'putor. Might still be worth a shot to revisit?

Also, besides the printer itself, what type of hub/router/thingydoo do you have? If the thingydoo also acts as a "print server", you probably have to find specific "port setting" requirements from the thingydoo documentation.

Send me a PM if you prefer not to reveal your network's makeup -- I just went through something similar after my crappy piece of poo D-Link died last week or two ago.