Time capsule woes

I bought a re-furb (alarm bells ringing) Time Capsule from the Apple store to replace a WRT54G-L as a WDS node at Praze Farm.

At the same time I fitted the Buffalo as the master Wifi point. With these two new Wireless-N devices I was hoping to see an upgrade in performance reliability. Unfortunately this is not the case.

Firstly this version 7.4.2 Airport is configured to Participate in a WDS network and allow wireless clients.

Description:	KodakESP7+0687
Location:
Driver:	KODAK ESP 7/9 All-in-One Printer (color, 2-sided printing)
Connection:	dnssd://KodakESP7%2B0687._pdl-datastream._tcp.local./?bidi
Defaults:	job-sheets=none, none media=na_letter_8.5x11in sides=one-sided

One thing is the Macbook doesn't seem to able to back up to the Time capsule, unless directly associated with the Airport.

I seems like they are on different networks, but I am able to ping from the Buffalo to Time Capsule connected devices and vice versa. What am I missing?

More annoyingly, is that the printer is associated to the Airport instead of the Buffalo and I can't print unless I am again directly associated with the Airport.

Can anyone help?

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