When I connect to te site, I see a list.  http://www.phy.ntnu.edu.tw/ntnujava/index.php?c=1

When I click on (for example) Kinematics, I see anpther list

http://www.phy.ntnu.edu.tw/ntnujava/index.php?board=1.0
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I am now expecting to click on one of these links and see an applet.  Sometimes I do not get an applet, I get posts about an applet.  I can't find the applet!  

http://www.phy.ntnu.edu.tw/ntnujava/viewtopic.php?t=421