I assume all is well, if I connect the iBook via Ethernet to the router it prints in Classic.

But in Classic via Wireless you can't see the printer in Chooser. Nor can you see the other computers on the network via AppleShare though you can connect to them by typing the IP address in the box in Chooser.

A similar thing happens when I connect my old G3 PowerBook running 8.6 to the router via Ethernet, can't print or see the other computers but can connect to them via IP address. [I use the PowerBook as it has a floppy drive and I still collect family history information via floppy!]

Sounds like your wireless router isn't forwarding AppleTalk packets.

Have fun,
Shay
--
=========================== Shay  Telfer ================================
 Perth, Western Australia   Technomancer  Join Team Sungroper in the
 Opinions for hire              [POQ]     2005 World Solar Challenge
 http://public.xdi.org/=Shay    fnord     <http://sungroper.asn.au/>