2D Unity project problem with Windows phone

Hi All,
I am trying the 2D Unity project sample with Unity 4.3.1 and I built and ran it for Windows Phone from Unity to my Lumia 620 and it was successfully but when run the app in my phone I see only a little part of its screen ( and not the complete game screen(like I saw in my Desktop) and only can shoot the gun when I touch the screen of my phone but I cannot move the character.
I have tried another project like for example the Angrybots project and built it with the same option and it was successfully too and then ran the apps in my windows 8 phone and I can move the character with one button and move the character with the other one.
Sorry but I am new in this topic and maybe the 2D unity project was done only to see on Desktop or maybe I should add some code to 2D unity project?
For it, Could anybody help me with this topic
Thanks for your help again and sorry for my little English
Best Regards
Alejandro

We implemented the 2D platformer project perfectly in the Unity Windows Porting docs.
Check it out and download the source from the repository, if you have any further issues let us know.

Hi Meltdown
I am going to read the pdf and its code to learn about this topic,
Thanks for your help !
Regards
Alejandro