I am using veronika theme. I try to use the default osclass custom field to add a new custom field in vehicle category. All is well except that during ad posting when a user select the vehicle/car  category, the custom field won't appear. Is there something I'm not doing right? Or do I have to add something in the theme code? You can check my site here pampaso.com

@bemtele
Custom fields and all hook data are shown on 3rd step for veronika theme.

Thank you. I now get it. Everything is working great.