add property listing without registration agent listing form on outside website

have real estate listing script called Orodha fork from open-realty. Default is you register as agent to post a property. You login and in the agent administration site you select which type of property form you want to fill and you select from a drop down which agent you are. I want to have it so that the agent can have the property listing form on the front end of their own website and allow anyone to post a property and when they do it get's added to the agents account. so that the agent can view his listings in his own administration (this last part already works this way). On this forum the following method was suggested [login to view URL] I don'[t have any more details. You can see a sample of the site here. [login to view URL]