Response from Buffalo support:
"Yes the setup you oultline in your e-mail is possible however, it is not possible with these models of Buffalo router as the Wireless Bridging Functionality was not added to this model,
The model that you could use for the desired setup is WHR-G125"
Right, that's wonderful... why put it on the box then?! Have requested RMA to credit from them, and will see what I get back... it's taking them about 3-4 days to reply. Going to get the supplier to chase them as well, then go to Trading Standards types if I get nowhere that way.
Will let you know how I fair.
Will