If you would like to use the WP audio player instead of the player in Powerpress, simply disable the Powerpress player and enable and configure the WP Audio Player plugin. The WP Audio Player is pretty sweet, lots of options with both color and placement options.
If you previously used PodPress, WP Audio Player will not recognize Podpress episodes. In the latest version of Powerpress (0.3.1), we added an option that allows you to still use the Powerpress Player only for Podpress episodes. To enable this, simply include the following define in your wp-config.php file. (Don't forget to turn on the Powerpress player, combined with this define, the Powerpress player will only appear for podpress episodes where the WP Audio Player would not appear)
define('POWERPRESS_USE_PLAYER_FOR_PODPRESS_EPISODES', true);
You can see your podcast only feed with the following:
www.site.com/wordpress_dir/wp-rss2.php?feed=podcast or if you have permalinks configured in Wordpress,
www.site.com/wordpress_dir/feed/podcast/Please feel free to include your podcast web site in any replies.