temp fix for ipod detection error after upgrading to itunes 10 in win xp

1. uninstall every apple software per instruction in apple support site.
2. install previous version of itunes (i.e. don’t remove setup file asap or simply use auto update function)
3. install latest version of itunes
4. done!

Mar 6 2011: itunes problem should be finally fixed in 10.2 by asking user to reboot the machine after installation