Hi, I've been at this now for 9 hours and tink that I've finally stumbled on the solution. I am not using IE9 or beta, and did update the video driver (thanks for the link), and reinstalled DirectX 9.0c, all to no avail -- no joy.
I followed the complete uninstall process religiously, but did add some to the process: after finding files/folders as described I did a search for any file\folder with Roxio or Sonic or Creator2009. I actually did find some so deleted them as well, emptied the recycle again and after I was sure there were no files left, then I went on to the registry edit. The other thing I did was delete Microsoft Net frame 3.5 SP1 and renamed dsetup.dll (in C:\windows\system32. I'm running Norton 360 v4, so disabled that via the several settings controls in the Norton software. Restarted and tried again -- no success... was I bummed!
By the way, it sems that it takes Creator 2009 almost 20 minutes to remove. It also takes about 36 minutes to install. Is this typical???
Where I finally succeeded was repeating all the above steps, but also uninstalling Norton 360 v4 COMPLETELY. Symantec has a removal tool that is downloadable, as the Control panel remove technique doesn't complete the job.
It seems from the Norton Community forum that the only way to completely stop Norton's activities is to completely uninstall. There is no complete "stop" available to the user.
After all this, installed Creator 2009 successfully!
All I can say is that the Creator software install apparently is very sensitive. And that would be OK, were it not for the NORTON software being insensitive to the needs of the user who, on occasion, need to turn all the Norton services off.