Windows 7: Why can't I add FrontPage 2003 to Windows XP Mode?

Sorry if this is covered elsewhere - I was daunted by the statement that a search of Windows Seven Forums had found 17,900 results in 0.26 seconds. Presumably all about XP Mode.
I was delighted to learn about XP Mode in a book on Windows 7 tips and techniques (you may know the one I mean).
So I bought Windows 7 Professional (£122!) because the Windows 7 Home Premium that came with my brand new, custome-made computer wasn't suitable. [Please tell me there isn't a Home Premium to Professional upgrade a lot cheaper than I paid!).
I then tried to upload the FrontPage 2003 programme I had on disc top continue my websites on the new, and much better equipped, computer - but it wouldn't work. (For one thing I cannot see how to upload it straight to the Virtual PC with XPM). I entered the product key as requested, only to be told that that required a version of Microsoft Office 97, 2000 or XP to upgrade. I needed a version of Microsoft on CD-Rom. All I had was an XP Home Edition upgrade CD which came with my previous computer. "Set up cannot continue because the version of Windows on your computer is newer than the version on the CD."
Well, of course it is. But I didn't think that would matter if I was working with XPM. Isn't that the whole point?!
An on-line help line couldn't help and I was told Microsoft will let me know when a solution is available. Yeah, right.
Am I missing a way of uploading direct to XP Mode? No option appears on screen.

SEPTEMBER 2012: Solution still not available from Microsoft. I wonder why?