Classipress theme is required for this plugin. To use this plugin you should have installed at least one plugin that offers additional features for your users when posting ads like: Paid Ad Features Paid Ad Extender Plugin will not allow users to make purchases smaller then the amount you specify. Free ads are still allowed. It also works with other plugins. Feel free to download my other plugins: CP Author Online CP Phone Link Custom Field Data Icons EasyCPMods Toolbox Faster with Stats