Move your div with id "banner-text" into the banner-icon div and change the css in the style.css as below:
HTML
<div id="banner-icon">
<center>
<img src="http://test.vtisvc.com/wp-content/uploads/2013/08/header_logo3.png" style="float:center">
<div id="banner-text">
<a href="http://test.vtisvc.com"><font face="georgia" color="#8a0304"">HOME</font></a> <a href="http://test.southernventures.com/contact"><font face="georgia" color="#8a0304">LISTINGS</font></a> <a href="http://test.southernventures.com/contact"><font face="georgia" color="#8a0304">AGENTS</font></a> <a href="http://test.southernventures.com/contact"><font face="georgia" color="#8a0304">SEARCH MLS</font></a> <a href="http://test.southernventures.com/contact"><font face="georgia" color="#8a0304">RENTALS</font></a> <a href="http://test.southernventures.com/contact"><font face="georgia" color="#8a0304">HISTORY</font></a> <a href="http://test.southernventures.com/contact"><font face="georgia" color="#8a0304">CONTACT</font></a>
</div>
</center>
</div>
CSS
#banner-text {
position: relative;
width: 940px;
top: 0;
left: 0;
margin-top: -44px;
margin-left: -346px;
z-index: 80;
}