Hi there,
I did a few tweaks that should have fixed it, but it still had problems.
I changed the rules for the #content div in your screen.css file to these:
#outerWrapper #contentWrapper #content {
margin-top: 0px;
margin-bottom: 0;
margin-left: 185px;
text-align: left;
padding: 10px 0;
margin-right: 185px;
}
It also looks as if a content management system(?) has been adding a whole lot of extraneous code to the index.php content div code which may also have been contributing to the problem.
With the page code cleaned up and the content div css tweaked, it seems to work fine.
It would also be worth surrounding your image with a new div to center it properly:
<div style="width:326px; margin:auto;">
<img src="PowerCMS/files/clip_image002(6).jpg" alt="" width="326" height="195">
</div>
I made the changes and added them to the page. I attach the page and stylesheet for your reference.