Modify the theme - Adifier - to Disable the login and lead to Dashboard

I need to modify the Adifier theme to disabled the login / register access; - In the default version of Adifier theme, if any person required to submit the Ads, first he required to Login / Register. But I need to change this setting. The way i wanted is as below; - I Attached 3 pictures here. when the User click the submit Ad button(picture-1), he is directed to a login / register page (picture-2). then once he enter login detail, he will be directed to a dashboard page (picture-3). - The way i need to change is, once user click submit ad (picture-1) button, he must directly go to the dashboard page (picture-3) without any login???? Theme Link - [login to view URL]