Just finished a project that utilizes SSP Director and Fancybox to display full images. This approach works without Director as well, but requires some changes to the AS. Let me know if anyone would like to see that code as well.

1. Create an event listener for when a user clicks on the content area of SSP. In the properties box for SSP, under the "Content Area" heading, change the "Action" option to "Event".

2. I would also recommend adding in a tool-tip for the content area to explain the click action. You can use this code to customize the tool-tip language: my_ssp.toolLabels[9] = "View Full Size";

3. Here's the AS portion:
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import net.slideshowpro.slideshowpro.*;

// Edit this for custom tool-tip on content area over
my_ssp.toolLabels[9] = "View Full Size";

var currentImgLink:String;
var currentAlbumPath:String;

// This calls the javascript function to activate Fancybox
function onImageClick(event:SSPImageEvent) { 

    if (event.zone=="action") {

        // This pauses the slideshow
        my_ssp.toggleDisplayMode();
        ExternalInterface.call("launchLightbox", currentImgLink);
    } 
} 
my_ssp.addEventListener(SSPImageEvent.IMAGE_CLICK, onImageClick);

// This determines the file path of the current image in SSP
function onImageData(event:SSPDataEvent){   

    currentImgLink = currentAlbumPath + "lg/" + String(event.data.file);
}
my_ssp.addEventListener(SSPDataEvent.IMAGE_DATA, onImageData);

// This determines the current album path
function onAlbumData(event:SSPDataEvent) {

    if (event.type=="albumData") {   
   
        currentAlbumPath = String(event.data.lgpath);
    }
}
my_ssp.addEventListener(SSPDataEvent.ALBUM_DATA, onAlbumData);





4. Here's the Javascript portion:

(you can drop this in the header area of your html document)
Download the Fancybox files here: http://fancybox.net
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<!-- This initializes Fancybox -->
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script>
!window.jQuery && document.write('<script src="jquery-1.4.3.min.js"><\/script>');
</script>
<script type="text/javascript" src="fancybox/jquery.mousewheel-3.0.4.pack.js"></script>
<script type="text/javascript" src="fancybox/jquery.fancybox-1.3.4.pack.js"></script>
<link rel="stylesheet" type="text/css" href="fancybox/jquery.fancybox-1.3.4.css" media="screen" />

<!-- You can customize Fancybox using these properties -->
<script type="text/javascript">
$(document).ready(function() {
               
$("a.group").fancybox({
'transitionIn'    :    'elastic',
'transitionOut'    :    'elastic',
'speedIn'        :    600,
'speedOut'        :    200,
'overlayShow'    :    false
});             
});
</script>

<!-- This is the function the Flash is calling to activate Fancybox -->
<script type="text/javascript">
function launchLightbox(currentImgLink) {

$.fancybox({'href':currentImgLink});
}
</script>

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Please let me know if you have any questions and you can see the working project here: http://brendanenglish.com/public/sspFan … cybox.html

*** DOWNLOAD THE PROJECT FILES HERE: http://brendanenglish.com/public/sspFan … ncybox.zip