s3Slider make rollover trigger image

s3Slider make rollover trigger image

I'm using s3Slider to create a rotating banner and I've got everything working well.

http://www.brianwpiper.com/jq/tstjQ4.html

Now I need to make the images at the bottom force the top image to change when the user rolls over them. I'm guessing it wouldn't be too difficult, but it's my first jQuery foray so I'm at a bit of a loss...

Thanks!