image positioning with <span style="">

[Rabbit Man]

I'm trying to position images using the <span style="position:absolute; top:_px; left:_px;"> tag. However, the images don't show up. I cannot figure this out. I'm probably missing something obvious, but I just don't get it. Here's a link to the actual page:
page (http://www.radioactiverabbit.com/site)
Thanks!

[Rabbit Man]

Okay, thanks. I also got some other ideas from friends. I'll play around and see what works best.