in reply to
Re^2: Reading from an ActiveX Object
in thread Reading from an ActiveX Object
If you use firefox with the firebug plugin you can trace request made via the XMLHttpRequest object(probably the ActiveX component in question on IE). Doing so I was able to find the content of the search at this url:
If you twiddle some of the URL params you should be able to mimic the search criteria you are looking for.