A few problems

Hello,

i'm having a few problems with the template now i'm nearing the end of the development of my site.

1. when i go to shopping cart when no product are added, i get a notificarion that says an adress needs to be filled in. This notification is showed twice.
2. Not everything translates and a language override can't be made. Search and shopping cart do not translate
3. I can't make a banner in the menu such as in the demo. When i follow the same steps as in the demo and publish the menu-item i get a 1046 error.
4. When i test registration i get a notification that the registration was succesfull. The registered gets an e-mail but the administrator doesn't. The following notifications are showed:
> you must provide at least one recepient email
> JUser: :_load: Kan gebruiker met ID: 981 niet laden

How can i fix these problems?

Problem 4 is resolved through admin panel. Only problems 1 till 3 needed to be attended.