BuddyPress.org

Good day everyone,
trying buddypress for first time here and running into a proplem. I am installing it off a directory off my root domain http://www.padraighs-alehouse.com/mcrack and the wordpress install went fine. I then tried to install buddypress it seemed to install fine the theme comes up went through configuration and changed permalinks and the .htaccess on the root. When I tryo go anywhere or do anything on the theme I get the following ‘backticks’ The requested URL /mcrack/members/cpeters1965/profile/ was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request. ‘backticks’

Any and all help is appreciated. Thank you