if you mean the airport model before the extreem one then yes we have one here. in essence to have all our desktops within range of the wireless we needed a new extreem for routing. however it did not work as the old station doe not support that routing thing so we had to ethernet in the extreem into my g5 to boost the signal downstairs then we turned internet sharing over eternet on and voila!!! it works.
for appletalk to work on my G5 though i need it on on ethernet
hope that was right and helps if not then my bad