Customizing the node create form using a template file I have created a template file for my content type, but I don't know how to get form design in that page. 

My content type name is wallpaper, and I created the page--node--add--wallpaper.tpl.php template file. How do I access the node title, or the node body, in the template file?
If you want to design the form then use hook_form_alter you will get form array. If you want to design the node page then user node--content_type.tpl.php.