When I download an app, some go to the Launchpad and some go to my application folder. I need them to go to iTunes so that I can sync them with my iPod. How can I do this?
Apps that go to the Launchpad are Mac apps, that is, for your desktop computer. You download them from the Mac App Store, an app on your Mac which has this icon:
You can't sync Mac apps with your iPod.
To get apps for your iPod, buy them in iTunes or open the App Store on your iPod, it is the app with this icon: