Xml photogallery reverse order?

Hello,

i’m using de classic kirupa xml gallery (with no thumbnails), and i managed to adapt the code to my intents, but i would like that the display of the images would be reversed. I mean, the image number 10, the last one that i add to my code, displays first, and not the number one. With this i could make something more like a blog, adding images each day, and the last image added would be the first one the visitor sees.
Sorry if this is allready ansewred, if so please point me the way.
Any help on changing the code is welcome!!!

Thanks