I figured out the answer, for both photos and files.
For pictures, the iPad is defaulted to use iCloud. Disabling that in settings on the iPad lets you select "Photos" in iTunes and you are able to Sync Photos, selecting any or all folders in Pictures on the PC.
As for transferring files using File Sharing, the issue is all the apps that Apple used to install on previous versions of iPad for File Sharing.........Keynote, Numbers and Pages, are no longer installed. They still show up as icons on the master screen as if they were installed and ready to go, but they (and a few others) now have a little cloud in the bottom left of the icon. If you click on the icon, it will tell you the app is not installed and directs you to the App Store, where you can when install it. These Apps are now listed in iTunes when you click on File Sharing.
As always, the old school way of adding individual or a few files or pics to your iPhone or iPad is still to simply email them to yourself and save the attachment(s).