I figured out how to enable printing also...
Go to the airport administrator tool, select the basestation, klick on the button, "alternatives for basestation" then a popup window appears, where you can enable remote access to printer.
with that checked, save the changes.
On the computer using ethernet only, go to the systemsettings, under printer and fax, select "add printer", there it finds the printer, it shows its name and locatin, and that the connection is bonjour...
there it goes...
print and play.