I'm working on a Drupal 7 install sub-theming zen. I have a blog and I want to have an "About the author" view on each blog post. I've created a custom post type (Profile) for this, but I'm not sure how to make my view aware of the user who has created each post to show the Profile depending on the post author. I know this used to be done with the view arguments but that's part of Contextual Filters in Drupal 7, but I still don't know what filter I should have there, or if I should add any fields in the Profiles so that the filters can tell which profile belongs to which author.
Any help will be most welcomed!