If an upgrade, from which OS...XP or Vista? Same hard drive or different one? Whether or not you data is still there depends on how the installation was done. Viewing the data depends on what programs you previously used and if you have the same or compatible software with Win 7 installed.
OK, I installed Windows 7. I understand the previous mail software is not part of the new OS but is all my data GONE? Address book? Recently received emails? GONE? I sure as hell hope not.
I'm not a fan of hotmail. What are the options now?
I had some very important emails in my 'inbox'..tell me there still on my computer somewhere.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic