Even if it's still in developement, since beta 5, you can upgrade your phpbb 2 to lastest version of phpbb 3. I would say that it's not completely stable and converter has some bugs, but for programmers like you, I think it would be great for the Xampp Community to upgrade it !
Have a look at http://www.phpbb.com/development/ for more info.
I would like to say I'm not in any ways affiliated with phpbb development. I'm just an end user that suggest this !