ClassiPress is a feature-rich theme built for ease-of-use and tight integration with WordPress to quickly build classified ads websites.
ClassiPress has many options such as managing images, setting up sub-categories for wordpress classifieds and requires no additional plugins. After installing ClassiPress on your WordPress site, you will find an additional ClassiPress section in the WordPress dashboard.
ClassiPress is available in three premium versions with lifetime updates.
More info: http://www.appthemes.com/themes/classipress/
Working demo: http://www.appthemes.com/demo/?theme=classipress