Thanks, Fred
It does look like someone went to considerable trouble to make that change!!!
I am thinking that the one with the Osama in the birth announcement would be from the original 1961 newspaper.
Editing a GIF file is not exactly rocket science. Changing a "b" to an "s" might have taken all of a couple of minutes. Give me half an hour and I'll change the name to Barack H. Smith, and the image will look OK.
If the scanned newspaper page is legitimate and says Osama instead of Obama, that is probably just a typo, and it does not matter. If someone edited the image to say Osama, that does not matter either. Even if it is legitimate, the newspaper birth announcement is not an official document. Beyond providing some confirmation that Obama's birthday is August 4th, it proves nothing.
This issue is just a red herring.