Yes, there is an update for Windows Vista in the ipod. It is available from the Microsoft windows site. They have numerous free upgrades available for many different programs and devices.
The iPod Touch will work with Windows 7.
Windows Update.
Via Windows update
Yes, you can reinstall Windows Update in Windows 7 by resetting the Windows Update components. This involves stopping the Windows Update services, renaming the SoftwareDistribution and Catroot2 folders, and then restarting the services. After that, you can check for updates again, and Windows will recreate the necessary files. Alternatively, you can use the Windows Update Troubleshooter available from Microsoft to help resolve issues.
Windows 8.1 can be downloaded and installed on a Windows 7 PC, but Windows 8.1 is not an update it is a new operating system. This new operating system can be bought from Microsoft for $119.99.
It can be regarded as both. It is an update on Windows 8.0 and could be seen as an upgrade on Windows 7 or older systems.
There are a number of free alternatives available for Windows such as Sharepod, Ephpod, and Yamipod. However, you will need to use iTunes if you wish to update the iPod firmware.
using the USB cable along with the ipod
yes!
It actually has nothing to do which ipod you are using. It has everything to do with what Itunes you are using. As far as I know Itunes works just fine on Windows 7.
There is no way to update your iPod from your iPod. You have to do it on iTunes on your computer.