How do i use a template file for my content type?
function THEME_preprocess_node(&amp;$variables) {
  print_r($variables['theme_hook_suggestions']);
}


put this code into you template.php this will give you the suggestions to make your tpl file. 

And for your answer you just can print anything in you page.tpl.php file it prints then you just have to change in your page.tpl.php file