Fields in page.tpl.php
I don't have the exact answers for you, but I do have some directions to point you. Try something like this:


In template.php, in a THEMENAME_preprocess_page() function, construct a query to get the node ID of the most recently created node. Look up Drupal's Database API to see how to do this. (A more permanent solution would be to use a custom module for the query, but let's start at the theme layer to get this working.)
Do a node_load() to get the entire contents of that node, which will contain your three fields, and more.
Create variables (inside the $variables[] array) to hold the rendered content of your custom fields.
Use those new variables in page.tpl.php, or page-article.tpl.php