1. Yes, you can assign admin access to more than one user. The theme uses the default WordPress user functionality for this.
2. By default, the theme requires all ad posters to complete the registration process. Some members of our community have however, customized the theme to allow ad posting without registration, so it is possible. It's not part of the ClassiPress admin settings though.
3. No, PayPal payments take place only when posting ads, or if the customer chooses to sign up for a membership package.
4. You can register to the
ClassiPress demo site if you wish to test out the actual ad posting process further. Thanks.