Infinite Scrolling

Trying to apply the INfinite SCrolling plugin, a few problems:

1. It simply doesn’t work, nothing happens when I set it up.

2. The problem might be that I’m not using the correct css selectors, I’ve tried many things, what exactly is a css selector. And if someone could look @ the source of the index file of my theme and tell em what one of them is, and how to find the others, I would be very appreciative.

3. Does this plugin even work in wordpress 3.0.3? Not enough data ont he plugin page.

My Site:
http://www.thenozzle.net/

The Plugin:
http://ww.wp.xz.cn/extend/plugins/infinite-scroll/

Thanks! 😀