rewrite rules not working the way expecting

Hi,

In a plugin I’m developing, I’m having a problem with getting rewrite rules to work.

For example, if I visit https://mysite/page-with-my-shortcode/ the page loads just fine and I see the data from my custom query, etc.

But as soon as I add onto the url paths like https://mysite/page-with-my-shortcode/genres/drama or https://mysite/page-with-my-shortcode/rating/pg and so forth, the page just redirects right back to https://mysite/page-with-my-shortcode/

add_filter('rewrite_rules_array', array(&$this, 'Plugin_Set_Rewrite_Rules'));
add_filter('query_vars', array(&$this, 'Plugin_Set_Query_Vars'));
add_filter('wp_loaded',array(&$this,'Plugin_FlushRules'));

function Plugin_Set_Rewrite_Rules($rules) {
	global $wp_rewrite;

	$fic_rules['page-with-my-shortcode/browse/?$'] = 'index.php?pagename=page-with-my-shortcode';

	$fic_rules['page-with-my-shortcode/story/([^/]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&story_title=$matches[1]';
	$fic_rules['page-with-my-shortcode/story/([^/]+)/page-([0-9]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&story_title=$matches[1]&page=$matches[2]';

	$fic_rules['page-with-my-shortcode/genre/?$'] = 'index.php?pagename=page-with-my-shortcode';
	$fic_rules['page-with-my-shortcode/rating/?$'] = 'index.php?pagename=page-with-my-shortcode';
	$fic_rules['page-with-my-shortcode/story_category/?$'] = 'index.php?pagename=page-with-my-shortcode';
	$fic_rules['page-with-my-shortcode/date/?$'] = 'index.php?pagename=page-with-my-shortcode';

	$fic_rules['page-with-my-shortcode/genre/([^/]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&genre=$matches[1]';
	$fic_rules['page-with-my-shortcode/rating/([^/]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&rating=$matches[1]';
	$fic_rules['page-with-my-shortcode/story_category/([^/]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&story_category=$matches[1]';
	$fic_rules['page-with-my-shortcode/date/([^/]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&date=$matches[1]';

	$fic_rules['page-with-my-shortcode/genre/([^/]+)/page-([0-9]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&genre=$matches[1]&page=$matches[2]';
	$fic_rules['page-with-my-shortcode/rating/([^/]+)/page-([0-9]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&rating=$matches[1]&page=$matches[2]';
	$fic_rules['page-with-my-shortcode/story_category/([^/]+)/page-([0-9]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&story_category=$matches[1]&page=$matches[2]';
	$fic_rules['page-with-my-shortcode/date/([^/]+)/page-([0-9]+)/?$'] = 'index.php?pagename=page-with-my-shortcode&date=$matches[1]&page=$matches[2]';

	$rules = array_merge($fic_rules, $rules);

	return $rules;
}

function Plugin_FlushRules()
{
	global $wp_rewrite;
	$wp_rewrite->flush_rules();
}

function Plugin_Set_Query_Vars($vars) {
	# forums and topics
	$vars[] = 'story_title';
	$vars[] = 'genre';
	$vars[] = 'rating';
	$vars[] = 'story_category';
	$vars[] = 'date';

	return $vars;
}

Hope this is enough info. What am I doing wrong?