Whenever you have questions. Ask Google. Only when you don't find the answers, then ask others. It is annoying to ask questions that can be easily answered by simple searching. Peace,
Ya a follow programmer of mine wrote one for http://www.xitalk.com forum, that uses phpbb, but that is not version 3, because templates structure is not same in phpbb3. I think he can modify it to use with phpbb3. I will request him to contact you here. regards