How can I get real XAP file from this project?

Question

I found a really good silverlight project. I would like to download XAP file from this project. But I just got a loader.xap. I couldn't get the main XAP file. Do you know how to get it? or what kind of technolgy do they use to hide XAP file?
Thanks.
The project link is http://money.finance.sina.com.cn/silverpulse/