Need help with Senocular's XML Portfolio

Hi everyone, I want to use the Flash tutorial here:
http://www.kirupa.com/web/xml/examples/portfolio.htm

I was wondering if it’s possible to have the pictures fade in and if the pictures can be different sizes. If so I want them to load centered horizontally and vertically.

I know about the border resize script but I can’t use that one.

Thanks
7:)