When adding images to a SimpleViewer gallery created by WP-SimpleViewer by clicking 'Add an image', after you click 'Save all changes' on the 'From Computer' tab, the tab selection will jump to the 'Gallery' tab.
At this point, close the 'Add an image' pop-up window.
Do not click 'Add Gallery'. This refers to a WordPress gallery rather than SimpleViewer and is responsible for adding the [gallery] tag.

The embedding code in your www.benmerrick.com/gallery page does not look like it was created by WP-SimpleViewer.
WP-SimpleViewer gives each <div> into which galleries are embedded a unique id and does not use <div id="sv-container"></div>.
If entering the embedding code yourself, you will need to point to the gallery's XML file using a galleryURL.
For example, change your embedding code from:

<!--START SIMPLEVIEWER EMBED.-->
<script type="text/javascript" src="svcore/js/simpleviewer.js"></script>
<script type="text/javascript">
simpleviewer.ready(function () {
simpleviewer.load("sv-container", "100%", "100%", "222222", true);
});
</script>
<div id="sv-container"></div>
<!-- END SIMPLEVIEWER EMBED -->

... to:

<!--START SIMPLEVIEWER EMBED.-->
<script type="text/javascript" src="svcore/js/simpleviewer.js"></script>
<script type="text/javascript">
var flashvars={};
flashvars.galleryURL="http://www.example.com/wordpress/wp-content/uploads/1.xml";
simpleviewer.ready(function () {
simpleviewer.load("sv-container", "100%", "100%", "222222", true, flashvars);
});
</script>
<div id="sv-container"></div>
<!-- END SIMPLEVIEWER EMBED -->

... changing the galleryURL value to point to your gallery's XML file.

When using WP-SimpleViewer to create a SimpleViewer gallery, all the files are in the correct locations and there is no need to move any files. WP-SimpleViewer also generates and inserts the required embedding code so there is also no need to insert embedding code manually into the body of the post.
For reference (I realise you have found this page but others reading this thread may find it useful), the WP-SimpleViewer WordPress support page can be found here: http://simpleviewer.net/simpleviewer/su … pleviewer/