1) There is an available 30 day trial period before the release of Pokemon Bank and Pokemon Transporter, on 31 January, 2014.
2) I'm not sure what this is, but if it's 'Will Poke Transporter come with it?', and then the answer to that would be yes. It's impossible for the Poke Transporter to come seperately, and vice versa.
3) 31 January, 2014. Before then you can have a free trial, however.
4) There is no website. It will be a Nintendo 3DS application.
5) It's an application on the 3DS. It communicates with the game inserted in the 3DS, and stuff. :3
Note, some of this isn't true, but is incredibly likely, me being a 3DS owner. :D
Hope I helped. :)