Move iTunes from Windows XP to Win 7
This article will explain how to move your iTunes from Windows XP to Windows 7, while preserving all of your media and settings, including iPhone information.
Copy your iTunes related files from your old Windows XP harddisk to Win 7 harddisk as below:
a. C:\Documents and Settings\username\Application Data\Apple Computer\iTunes
--> C:\Users\username\AppData\Roaming\Apple Computer\iTunes
b. C:\Documents and Settings\username\Local Settings\Application Data\Apple Computer\iTunes
--> C:\Users\username\AppData\Local\Apple Computer\iTunes
c. C:\Documents and Settings\username\My Documents\My Music\iTunes
Then install iTunes on Win 7. Then launch iTunes and you should see all your original settings (including backups of your iPhones) show correctly in the new computer.