The link you posted is on tomhillmannmediadesign.com but the URLs within your gallery's embedding code refer to www.tomhillmannmediadesign.com (www.tomhillmannmediadesign.com being a subdomain of tomhillmannmediadesign.com).
Please see this FAQ for details: http://simpleviewer.net/simpleviewer/su … trouble_11
Try changing your embedding code to the following, ie:

<script type="text/javascript" src="http://tomhillmannmediadesign.com/clients/dianalovell/svmanager/g1/svcore/js/simpleviewer.js"></script><br />
<script type="text/javascript">
var flashvars = {};
flashvars.baseURL = "http://tomhillmannmediadesign.com/clients/dianalovell/svmanager/g1/";
simpleviewer.ready(function () {
simpleviewer.load("sv-container", "600", "600", "transparent", true, flashvars);
});
</script>

I ran into another roadblock.

Using an iFrame to display the gallery works on the main site and displays on the iPhone www.tomhillmannmediadesign.com/staging
but a subfolder client site that is domain mapped won't display the iFrame gallery www.dianalovell.com/staging on the iPhone.

I can't get the embed method to work now, not on the main domain, or the mapped domain. And I can't remember if I used the embed code from sv-Builder Pro, or the code you supplied in this thread (which was different that what sv-Builder Pro created.)

Here's what is output, can you show me how you would edit this?

<!--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%", "transparent", true);
});
</script>
<div id="sv-container"></div>
<!-- END SIMPLEVIEWER EMBED -->

Ok, that code works to get the gallery to appear on the computer browser, but now both the iPad and iPhone say "Gallery XML Not Found"
Testing page: http://www.dianalovell.com/staging
but it works on the originating domain http://www.tomhillmannmediadesign.com/staging on computer browser, iPad, and iPhone.  Are we a step closer in that we are getting, "Gallery XML Not Found." ? Or is this totally an iPhone shortcoming whether iFrame or embed is used to place a gallery from another domain on a page?

The testing page now has a Youtube video (right below the SV Gallery) in an iFrame. Below the Youtube video I added a static webpage in an iFrame. This was to test whether or not the iPhone will show content from another domain in an iFrame. The Youtube video and the static webpage which are in iFrames both show up on the iPhone, while the gallery is still not visible. http://www.dianalovell.com/staging So, would you say this is a bug with the SV coding as opposed to the iPhone's ability to show content from a different domain in an iFrame?