I want to look up a page id and determine if it's a page or post. Then query that id and display stuff like title, featured image, etc. This works for Pages: query_posts('page=' . ...
The result of the query so far is the print of the array, Array (  => 309  => 10 ), 309 & 10 are the correct id's of the posts I want to display, and "No posts were found" the result of ...