I tried and all I found was gobbledegook.
It's at the top right corner on the blue bar next to 1-800-myapple. It usually takes a few seconds to pop up.
For instance... http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/61104000/wo/yf28zEKCjV793VImPzrYqOJ4N3Q/2.?p=0
well all he did was link to a computer customization page... go to one.. you can pick any computer you like (it may work outside of a page like that, but i don't know) and then wait and in the upper left hand corner a link will come up to chat with one.. its not instant, took a minute or so. I guess it waits for one to be free.