Problem with KM URL iview

Hello Experts.

I have created a URL iview (URL is a link to image in KM). I previewd it works fine . When I double click the iview and from URL iview editor. when I click the browse beside the URL. It gives me the following error.

Unable to fetch site http://www.xxxxx.com/irj/go/km/repository/repo/images/raj.jpg.

Error401.

I have added this iview as the entry point to role. so, i dodnt get any image there. instead i get a page not found error.

Your help is greatly appreciated.

Thanks.