What I’ve done is changed the links to thumbnails, and when the slider cycles through, the thumbnails are highlighted.
Using the “Click to trigger sliding” menu, added a new class for the alt_controls li and updated the glider.js moveTo: function, to set the class in the relevant alt_controls li

Here’s the code if anyone is interested.

Update glider.js: moveTo: function
add following code before Position.prepare();

for (i=0;i<this.sections.length;i++)
{                              $('showdiv'+i).removeClassName('on');
}
var selectOn = (this.current._index == null) ? 0 : this.current._index;
                        $('showdiv'+selectOn).addClassName('on');
<code>

Make sure you add a suitable style. This one will simply underline a link:
<code>
.alt_controls ul li.on span
{
        text-decoration:underline;
}

Set the class=”on” for the first display
<li id="showdiv0" class="on">

Thanks for taking the time to make your post Teddy

PS: I’m from Belgium

I have checked the download link and it does lead to a functional page. Feel free to approach me if you need further assistance :)

Olivier