OK, another question coming around... :P
I have a custom template page foo.php. If I understand the documentation right, when I access website.com/?foo=12 WordPress will search for foo-12.php, then foo.php, then default to index.php.
However...it's ALWAYS defaulting to index.php. I'm guessing I'm missing some key component here. I added the "Template Name" tag to the top of the file, although I'm not sure if that's necessary.
Any help would be greatly appreciated.