I followed the link, and can't find where the article provides an example of a known genuine Kenyan birth certificate from that date (heck, that month would do) that gives the nation's name as "Republic of Kenya". I'm sure this oversight will be corrected soon; perhaps I ought to drop the author a line....
I fail to see where he provided a link to Kenyan BC. Can you show us?
You will find them insisting that it has not been authenticated, nor has it been debunked. This is Orly Taitz's own position.
The real issue, repeated many times on these threads, and just now by you, is as follows.
Does the B/C match other B/Cs of the same period?
Does the book and register number match a record in the Birth registry?
And do the details in the registry match?
These items alone are important. Any assumptions the brownshirt media might have about Mombasan registration workflow and letterheading fifty years ago are simply not relevant to the discussion. Only the primary sources matter.
On Orly's site (http://www.orlytaitzesq.com/blog1/) you will find a very persuasive letter from a Kenyan born about the same time as Obama indicating that their documents are amazingly similar, with both actually signed by the same E.F. Lavender. Surely, the email could have been concocted, but to me it reads very authentic:
“I happen to be Kenyan. I was born 1 month before Obama at Mombasa medical center. I am a teacher here at the MM Shaw Primary School in Kenya. I compared my birth certificate to the one that has been put on by Taitz and mine is exactly the same. I even have the same registrar and format. The type is identical. I am by nature a skeptical person. I teach science here and challenge most things that cannot be proven. So I went to an official registrar today and pulled up the picture on the web. They magnified it and determined it to be authentic. There is even a plaque with Registrar Lavenders name on it as he was a Brit and was in charge of the Registrar office from 1959 until January of 1964. The reason the date on the certificate says republic of Kenya is that we were a republic when the “copy” of the original was ordered. I stress the word “copy.” My copy also has republic of Kenya.”