I have one question. I use latest Wordpress and Budypress. I have language files for buddypress - .po and .mo. My question is where I need to put the files, how I need to rename them and is there any function that I need to add somewhere (for example functions.php) to load them. I checked this page and try to follow the instructions, but my site is still in english.
Thank you in advance :)

/wp-content/languages/folder. Have you done that? – Lea Cohen Jan 27 at 6:21