Cooliris > Click the thumbnail to a larger window which is html page, not a bigger picture

Hi Guys:

I have put an url in the media:content, when click the thumbnail, I want to load a page in the larger window, not a bigger picture.
But It seems it can not work. The page of the url is not opened when click it, still a picture which larges the thumbnail.

<item>
<title>&#x4E2D;&#x56FD;</title>
<link>http://www.sina.com.cn</link>
<guid>dcb8ffbf-0692-4dab-b261-1db34096b53b</guid>
<media:description>Description of my Image</media:description>
<media:thumbnail url="http://10.140.1.148:8080/pics/websites/pl_thumbs/1_thumb.jpg" />
<media:content url="http://10.140.1.148:8080" type="html"/>
</item>

It's so strange!
1 Firefox can open the url when click the thumbnail, but it display the page in full screen, not in the "bigger window".
For this sucessfull action, I must put a lot of items in the RSS, if there are only several items, the url of it still can not be opened.

2 For IE 6, the link can not be opened any more.

Nobody konw this?
cooliris support guys, can you have a look at this issue?