bbPress.org

@alexvorn2 – You can make it work with a subdomain now. Create the forum.site.com subdomain. Next create a page, title it “Forum” or whatever you like. Put “[bbp-forum-index]” including the brackets as the content of the page and publish it.

Then go to Settings -> Reading in the Admin panel. Change the “Front Page Displays” option to page and select “Forum” or whatever you named the page. An example is at http://forum.ajorel.com.