Thank you Hunt for your quick reply, but,
the question is why is this happening. I know I installed the complete package under Vista, but after the upgrade to Windows 7, it begins to think that the full content is not there. Why? The articles you reference are for PRE8, by the way, not PRE7, not that that really matters. I have my install DVD, so I don't need to download the files, they should be on the DVD, if I am forced to reinstall them, but I should not have to go through this hassle in the first place!
Why it's happening is a mystery. My guess would be that the upgrade in the OS is part of the problem, but that is just a guess. Some have reported that Win7 does the upgrade thing better than any previous OS, but others report all sorts of odd problems, when doing it this way.
If you have the DVD, then I'd try a Repair Install, to see if it picks up the Functional Content.
Otherwise, I am at a loss as to why, when you upgraded your OS, PrE 7 lost the link to that material.