When you say "IE9 script settings are ok." does that mean that "Disable script debugging (Internet Explorer)" and "Disable script debugging (Other)" are both enabled (i.e. "checked" or "ticked"). I haven't installed IE9 yet so maybe Microsoft has renamed these setting since IE8.
Sometimes these types of errors are caused by one malformed HTML feed item that will go away once it's no longer displayed in Awasu. Although, from the URL that you just posted it doesn't look like it's a highly HTML formatted feed.
For what it's worth I don't have any script errors in IE8 with the current feed items.
If the Channel is set to display "All" feed items the "bad" feed item may hang around away. You may be able to hasten its demise by marking all the current items as read and setting "Show feed items" to either "New" or "Unread"; or use the "Show the last" setting to restrict the number of feeds items displayed to a set number or a specific time period.