The technique discussed in those threads was from an old article here about data-binding using I.E.'s data islands. The article includes some examples, including an example of reading an RSS feed using these techniques.
First there is the usual caveat for this stuff: Data-binding techniques as they are used here work ONLY in I.E. If people prefer other browsers and even other operating systems they will not be able to view data you include in your pages using data-binding. For example, I prefer Firefox and had to start I.E. special in order to view your page as it was meant to be viewed (I will now need to preemptively reboot my computer, run full virus and spy-ware scans, and take a hot shower ).
. . .
I came up with JSMsg to address the same problem you are now struggling with. In a perfect world, it should not require server-side scripting to simply display an information-feed (like RSS) on a web-page.
Fourth, I usually mention my own pet-peeve about this issue. Right now the standard says you can include a style-sheet (or similar structure) from within an XML data document. The standard doesn't take the one tiny extra logical step and allow XML data documents to be included from within style-sheets (etc.). If the W3C would simply codify the reverse of their XML "include" convention, permitting people to include an XML data document from within a style sheet. None of this absurd complexity would be necessary.
Sorry about talking your eyes off.