There are several html files for different language version.
Vector.html is the english version.
If it is still not working, may be it is due to two lines I forgot to remove in the html file
Please remove the following two lines:
<meta http-equiv="Content-Type" content="text/html; charset=big5">
<meta name="GENERATOR" content="Mozilla/4.7 [en] (Win98; I) [Netscape]">
And it should work fine.
I have change the ZIP files so there should be no problem if you ask the ZIP file again.