Sorry, George, I hadn't read your second post in this thread before making my previous post. It took me too long to write it, I guess.

You are not necessarily stuck. I can think of a couple of ways to proceed.

Is the Airport Extreme Base Station close to the Linksys router? If so, it is still an option to use the Airport Extreme Base Station as your primary router, by converting the Linksys router into a simple switch. To do this:

Connect your broadband service to the WAN port on the Airport Extreme Base Station. Connect to the LAN port of the Airport Extreme Base Station to one of the LAN ports of the Linksys router. Use one of the wired clients of the Linksys router to access the Linksys administration page (http://192.168.1.1), and go to the DHCP tab. Disable DHCP on the Linksys router; click Apply. The Linksys router will now have nothing connected to its WAN port and will not assign IP addresses. Configure the Airport Extreme Base Station with the Airport Admin Utility as your primary router by filling in information on the "Internet" tab for connecting (via PPPoE I assume) to your ISP (essentially the same information on the set up tab from your old Linksys configuration.)

This will, of course, temporarily disrupt any connections the other computers on the network have, but as soon as they are restarted they should be assigned IP addresses by the DHCP server in the Airport Extreme Base Station in the 10.0 range used by Apple. (You should be able to verify this in System Preferences / Network panel; Show: Built-in Ethernet. TCP/IP Tab. "IP Address:" should be 10.0.1.***.)

from the looks of this, you may have fixed it all... but incase you did not...

the clue here is in your original config, you had 2 networks going on.

after switching that "distribute" deal off, you should have fixed it all.

your router will serve DHCP address thru the Airport, and all should be great.

i use the following network:

<pre>code:<hr>
CABLEMODEM ---> ROUTER --+--> AIRPORT #1 --+--(WIFI)--> AIRPORT #2 --+--(ETHERNET)--> XBOX
| | |
+--> G5 +--(USB)--> PRINTER +--(USB)--> PRINTER
| | |
+--> PRINTER +--(WIFI)--> POWERBOOK +--(WIFI)--> POWERBOOK
|
+--> LINUX BOX
</pre><hr>

the reason for the 2 airports is to flood the house with signal for the powerbook, and or any APEs i add in later as i have several stereos around the house. also, it allows me to be on any patio around the immediate perimiter of the home for outdoor internet access. mind you this drops off about 20 feet or so from any wall, but it works.

the entire network is on 192.168.0.1/24 - so everything talks to everything.

the 2 airports are essentially just passing along the router's DHCP. so everything gets address from it.

note that the xbox also uses the router's DHCP, and it has a long trip, and still works fine...

modem --> router --> airport 1--(wifi)--> airport 2--(eth)--> xbox

Also, all the printers are browsable from everyone too. i can print to any of them from any system.

i can understand that, however, since i don't have an APE yet, i cant test it's reach-ability to say a most extreme point on the network, but i do believe that if George's network is setup similarly, he will have no problem. knowing nothing else about the APE device except that it is a typical WiFi network appliance, I would bet that the real requirements to reach it is that it must reside in the same subnet, not much more.

in any case, i figured sharing my setup with those trying to make other complex network setups work may help.