Internet not working on Non-Equipped Airport iMac w/ AE wired via Ethernet

Question

I have a total of (3) non-equipped airport computers that I wanted to share Internet thru the (2) AEs and (1) AEBS. Using one computer, I manually configured the AE and powered it down, then using the same computer I configured the AEBS, then powdered up the AE and it showed SOLID GREEN!. FYI...I did select it to communicate with the AEBS by WDS. Now I have the Flowerpower iMac with ethernet cord plugged into the (1) AE, and it still has the Solid Green Light. The Built-in ethernet is not communicating with/to the Internet??
I went to "System Preferences" on the computer to check the "Network" settings. Is this where the problem lies?? Under the "TCP/IP" it has the "Configure" with options,which should it be? (Manual, DCHP, or DCHP with manual address)?
When I choose "DCHP", it self assigned the IP Address and then states that it might not be able to connect to the Internet, the "manual" and "DCHP with manual" states that I am connected, but it can't find the server web address that I'm looking for. I originally configured the AE using the info I got off of the AEBS, but not the exact same IP Address or Mac Address. I also configuring the Network Internet settings on the computer with that I found from the "System Preferences" on the graphite iMac with the RCA modem and AEBS attached via ethernet cables.
I think I'm getting confused... The AEBS has thru the Airport Admin. Utility:Internet, airport, network and WDS settings, the computer that's connected to it has thru the System Preferences: Network built-In ethernet with TCP/IP and ethernet settings, the AE has thru the Airport Admin. Utility: Internet, airport, Network and WDS settings and the computer connected to it has thru the System Preferences: Network built-in ethernet with TCP/IP and ethernet settings.
Do they all share some of the exact same information? Is there some fields that I don't need to fill in or select? If I'm manually filling in the information, Where do pull that correct information from?
Okay after stating that, it makes me sound like I don't have a clue and I'm just lucky that I got the AE to turn on Green. But I haven't found anything published addressing this exactly and straight forward.
Can anyone who has done this and succeeded go over this step-by-step? and unravel the all twisted up information that's going around and around in my head?
iMac G3 Graphite, iBook G3 Graphite Clamshell, iMac G3 FlowerPower   Mac OS X (10.3.9)  

Answer 1

I had to manually configure the AX and the Built-In Ethernet on the flowerpower iMac, when I tried to do it automatically with DCHP, it self-assigned the IP Address and would not let me connect on the Internet nor was the light green. I remembered iFelix's instructions stating that I would have to do it manually and the light turned green again! and my email works on the graphite BUT now I can't get the AX to appear in the Airport Admin. Utility, so I rechecked my settings thru the Airport Admin. Utility and in the Airport I checked the "enable the IR option". and............ well It appeared and I went to the flowerpower iMac with my daughter by my side, we both held hands eagerly awaiting to see if the web page would load and........ and......... and....... and......... and........ WWWWWWWWWWWWWWWAAAAAAAAAAHHHHHHHHHHOOOOOOOOOOOOOO she screamed, I screamed, she screamed again sooooooo loud that I didn't notice that I was still screaming too! IT WORKS!!!!! It REALLY WORKS!!!!!!!
Look, are you looking? Can you see I'm smiling ear to ear!!!!!
YOU CAN DO THIS!!!!
For anyone wanting tips, please refer to my other thread Re: Can the Airport Express be used as an external card too? start by me.