I am the owner of the blog Contos.br and I need help with the authorship of the texts.
At my blog I publish texts of several writers for Creative Commons and I need to put their names as authors.
The problem is that when I post, the credits come in my name.
This is a theme issue (Quintus) or I can set my name to vanish in the posts?
In order for those people to have Author roles on your blog you must invite them to become Authors and they must accept. After that has taken place and each Author has published a single post then their Author byline will appear.
You have referred to Contos.br but your username is linked to http://contosbr.wordpress.com/ so if you wish to purchase domain mapping then Staff can provide a zone record so you can accomplish that. Is that what you want to do?