a difference between simulator result and the device result on n8

i downloaded the address book application from [url]http://doc.qt.nokia.com/4.6/tutorials-addressbook.html[/url].
when i run this application on simulator it looks and run great but when i build a sis file which i copy to my n8 device and install it the application also works fine but looks
quiete different(at protrait mode the area of the application doesnt take all the screen length and at landscape mode the buttons at the bottom of next and previous are partialy
covered by the bottom header which include the exit button which enable exiting from the application)

since i am new to the platform of qt and symbian 3 i will very apreciete any help about this issue and please forgive me about my awful english.

You would do better by using mobile specific example. Go to [url]https://www.forum.nokia.com/Develop/Qt/Code_examples/[/url] to see some of these.
Also you can browse the forum.nokia.com wiki.

Simulator is basically "desktop Qt running fake qstyle", whereas on N8 you get "symbian Qt running real qstyle". There are lots of differences.

I heard that there is a static file to which you can use to generate the GPS paths for the GPS emulation.

Atleast I have not heard of such feature. I believe you can do that on the Symbian C++ [B]emulator[/B], but that is a different case from Qt Simulator.