[Plugin: WP-SWFObject] WP-SWF Object

I have installed and configured this plugin and tried to insert a SWF using this tag:
[SWF]/wordpress/wp-content/themes/autumn-almanac/images/discoball.swf, 158, 165[/SWF]

in the post

I see that the background feature is working but I can’t see the swf no matter how I change the settings.