Hi,
Is this a problem with the eStore or a template for eBay listing?
Oh...and the eStore does appear to have a script error on loading with this piece of code:
zoneElement = document.getElementById('ctl00_ContentZone');
if (zoneElement != null) {
The problem is with the object assignment for a non-exiting object. However, testing for it with if(document.getElementById('ct100_ContentZone')) should be valid. If the variable is needed elsewhere, then make the assignment with the test.
I did see that Shipping also didn't have a valid server aspx page call.
Danno