XML Image Gallery - Setting x,y of image via XML?

programming flash
1

I’m working on version of Kirupa’s XML Image Gallery, only I want to be able to set the x,y coordinates individually for each image. How do I do this via the XML.

I’m trying this to no avail:
XML looks like this:

<pic>
<image x=“0” y=“0”>001.jpg</image>
<caption>description line 1</caption>
<caption2>description line 2</caption2>
<caption3>description line 3</caption3>
</pic>

<pic>
<image x=“100” y=“200”>002.jpg</image>
<caption>description line 1</caption>
<caption2>description line 2</caption2>
<caption3>description line 3</caption3>
</pic>

Actionscript looks like this:

function placeImage() {
var image_x:Number = Number(picture.attributes.x);
var image_y:Number = Number(picture.attributes.y);
}

Can anyone let me know what I’m doing wrong, what I’m missing?
Or how better to go about this?

Thanks!