I found these directions from another user named Neil. The only change I made was to UPDATE my driver rather than"uninstall" it. After I updated the driver so that my iPod and iTunes were speaking the same language, the sync started up just fine. The fix took less than two mins.
This solved it for me:
Right click 'Computer' then click 'properties'
From there click on 'devices'
For me the ipod showed up in the list but it had a yellow triangle with an exclamation mark in it (you may have expand the option 'disk drives' to see it)
Next you right click on the ipod and 'uninstall' the driver.
After it's done that it should automatically reinstall it, or you can hit 'update driver software'
My ipod then showed up in devices &, more importantly, synced with the new itunes.
Hope this helps.