Allowing Users to be the "Contact Owner" email

Ways I have searched for the answer so far
I would like to start by saying that I have searched this site looking for the answer and have been able to do so.

I also called a local programmer and offered to pay to have this “glitch” fixed for me, but he said he wasn’t sure if he would be able to do what I asked.

I also went to the forums of the creator of the theme. I searched that forum without finding any questions about the same matter. So I then posted asking about how to do this. I have not received a response yet.

I have also read any information about the theme. I was unable to find the answer there.

http://www.swanprops.com

The Functionality of my Website
This is a realestate website. I am allowing others to post their rental properties on the site.

In order to do this, I have had to install several plugins.

Plugins Installed

s2member-so that people would be able to create login user names for the site. I can also charge if desired later on.
custom optimization-A plugin to control menu visibility in the admin panel
user role-editor-this allows me to give someone the privileges to post/delete, and only post/delete.(their own post)
elegant estatethis came from elegant themes. This is the theme that I am using

How to get to the page I want you to see for help
Simply click on the “view the listing” from the homepage

The Problem
When someone creates a user name and creates a new post a “contact owner” box is on the listing. When someone clicks on “contact owner” my email address is the one that comes up.

Question
How can I change the “contact owner” box to list the post creator’s email?

Thanks in advance for your help