Linking to larger image in the Photo Gallery using XML and Flash

I’ve been tooling around with the photo gallery, trying to get it so the larger image, when clicked, loads an even larger version of the selected thumbnail. I have the XML that looks like this:

<pic>
    <image>[http://heisei.he.funpic.org/html2/layouts/websites/psorange.jpg](http://heisei.he.funpic.org/html2/layouts/websites/psorange.jpg)
    <caption>PS Orange
    <thumbnail>[http://heisei.he.funpic.org/html2/layouts/websites/thumbpsorange.jpg](http://heisei.he.funpic.org/html2/layouts/websites/thumbpsorange.jpg)
    <link>[http://heisei.he.funpic.org/html/layouts/websites/psorange.gif](http://heisei.he.funpic.org/html/layouts/websites/psorange.gif)
</pic>

and I’ve noticed that the actionscript in the .fla doesn’t mention the link variable at all… If someone could give me a hand getting this to do what I want, I’d really appreciate it… I’m not all that adept at using flash/xml, so I’ve really just been frankenstein-ing mine together from cool bits I’ve found here and there.