fubhy

this is an example of how I solved this with a theme function…

function do_include($file)
{
	$parent = get_template_directory() . '/';
	$child = $parent . '../' . get_child_folder() . '/' . $file;
	$parent = $parent . $file;

	if(file_exists($child))
		include($child);

	elseif(file_exists($parent))
		include($parent);
}

function get_child_folder()
{
	return array_pop(explode('/', dirname(get_bloginfo('stylesheet_url'))));
}