Topic: gallery with distant images and thumbs

Hello,
I've a problem. I want to build a gallery powered by a SOAP client. This SOAP client (written in php) return the URL images and thumb because they are content in a distant file system, this tools write a gallery.xml like this :

...
<image imageURL="http://medihal.archives-ouvertes.fr/docs/00/45/23/33/IMG/4121466513_f3826ff60f_o.jpg" thumbURL="http://medihal.archives-ouvertes.fr/docs/00/45/23/33/archives/thumb.jpg" linkURL="http://medihal.archives-ouvertes.fr/medihal-00452333/fr/">
    <caption>Lac Assal</caption>
</image>
<image imageURL="http://medihal.archives-ouvertes.fr/docs/00/44/99/56/IMG/djibouti_0001-2009.jpg" thumbURL="http://medihal.archives-ouvertes.fr/docs/00/44/99/56/archives/thumb.jpg" linkURL="http://medihal.archives-ouvertes.fr/medihal-00449956/fr/">
    <caption>Plaine de l'Ardoukôba</caption>
</image>
...

When I load this xml file in my index.html, images load well, but not the thumbs : I have no 'images' in the thumbs squares. Have you some solutions or ideas ?

Best,

Stéphane.