A family of Microsoft word processing software products for creating web, email, and print documents.
The link you provided gives a 404 error, so it's not possible to see what the answer was - although I believe I recognize the question...
I usually like to provide background information and my information source to back up a statement, but to boil it down to something more understandable:
The feature was removed from Office 2007. It's not there any more. You can't do what you did in Word 2003.
A Word document does not natively have HTML Code. You can save a Word document to "web page" format, open that in a text editor (or in Word if you activate the option that will let you select the encoding) and view the HTML the converter generated.
But in its native environment, a Word document is either in its binary file format or in the new OpenXML file format. It's never in HTML format. The tool that was integrated in earlier versions of Word (the VB Script editor) to show you HTML has been removed from Office 2007, so it's no longer possible to view any HTML.
Cindy Meister, VSTO/Word MVP