Simply download the Zip-Archive and extract all folder into your my-plugins directory. Then go into your BbPress administration page, click on Plugins and activate it. Open wp2bbpress.php with your favorite text editor to config the plugin.
I’ve created one template tags you can use in your pages:
get_wp_postdata('title'): Show Bbpress latest discussion on wp static page.
Examples of use:
<?php if (function_exists('get_wp_postdata')) { get_wp_postdata('title'); } ?>
More Documentation Here.