MS Word within IE - Editing? Code Interaction?

I was checking out: http://support.microsoft.com/kb/286023 & http://support.microsoft.com/kb/555685 which specifies how to use Automation to get data within and out of MS Word.

What I'm trying to accomplish:

- MS Word (viewing and editing capabilities) within the IE6/Win browser
- Communication between MS Word and Javascript, ActiveX, or .Net Control within the browser.

I notice that if i were to navigate to an online Word document, IE6 displays it within the browser using Word.  I am able to view and edit it with ease (though the standard Word toolbar is missing).  This is exactly what I want but now i would like to have communication between Word and my code.  I will need access to the contents of the document (opened information or newly typed data) to make some adjustments before it is saved / uploaded to our server for storage.

IE6 will be used on PCs within our intranet and can be modified to whatever permissions i require.  All PCs are using Windows 2000/XP and have MS Office 2003 pre-installed and .Net Framework v1.1+.

If this is all impossible can you please recommend an opensource or affordable commercial solution to acheive this.

Thanks for any information.