Andy - first of all, have you downloaded the HearMe software? Secondly, when you clicked on the link, did you then click on song circle (sometimes I find I have to do this twice, if the page hasnt loaded properly first time. What you should see is a pop up window, which will just be blank grey at first, until you are connected.

Oh, youre not using a Mac are you, I think it doesnt work on macs.

Other than that, I can't be much help.

Bagpuss