1. Many of those are service books. You can delete the service books but most likely they will be pushed back. Just hide them.
3. Don't know--I don't have a Tour. Usually there is a large pdf format full user's guide on the CD that came with the device. Try that.
4. Freezing usually means you are impatient. Have you given it sufficient time to open? Many times the first time you open an app like that it needs a minute or two to initialize.