How are they "publish"ing books on "all the major e-book websites"? The biggest ebook sites are publishers themselves or retailers who do not publish books. Neither makes any sense in that context at all.
ETA: More red flags, from their "About" page:
Bluewood Publishing Ltd was formed in mid 2009 by two authors, one a New Zealander, one English, to try to provide publishing services, particularly to brand new authors.
Both of us initially had enormous difficulty in being accepted by a publisher and getting our books out there.
Over the months that followed we became friends, and realised we both had the ambition, drive and talents to move into the publishing field. Bluewood Publishing Ltd is the result.
1. "Brand new authors." Sigh
2. "We have no experience in publishing at all, not even as writers."
They also claim their "contracts either match or beat those of any other bona fide professional publisher out there," which a quick perusal of the contract terms proves to be untrue. They pay on net, which is not standard for epublishing.
You have to register to look at their Bookshop. Um, no thanks.
You have to register in order to see how much any of the books actually cost.
At least one book is 3,000 words long in its entirety, if I read the site correctly.
Googling their authors and titles shows no outlets for sale of the titles save the publisher's own website.