I've set up my site, and initially when I posted articles they were correctly attributed to "admin". I have now added two more users to my site as "authors" so they can contribute their own content directly without it having to go via me.
The problem is, now when I add my own content, it always attributes it to the first author I set up. If I look in the Edit Post section then it only lists the two author I set up under "Post Author" there seems to be no way for me to attribute articles to the admin any more. What's going on?