Thank you, Mithun Pal,
At some point, I will probably upgrade from IE 6 to this new build. However, at the moment my system runs just fine and IE 6 does everything it's supposed to and does so satisfactorily.
I really appreciate your taking the time to post all of the wealth of information that you have given us in this announcement. I had no idea that analysis programs are available for my PCs to see if they are IE7-ready. I've DLed and run the Vista diagnoses programs, but now that I know of the information and links to tools you posted here, I will certainly be prepared to make an informed decision as to when and how to upgrade, both my system and my browser. Invaluable information, and I thank you for posting it here for us.