OK, so it should work, please choose preferred case study first:
http://alterbrains.com/joomla-extension ... se-studies

Hello, I would like to know what are your advices about SEO when using Mightysites. (I didn't see anything in your documentation about it) In my case, I have a few slave sites with own database which share some of the master site extensions such as categories, articles, easyblog and easysocial. ...

Yes, it can be possible please check this case study:
http://alterbrains.com/joomla-extension ... or-modules

Yes, please check this case study - it's the best and most common usage practice:
http://alterbrains.com/joomla-extension ... or-modules

... stable is released. Dev bridge version already works with phpBB 3.1.0 RC-4, so we won't wait too much time since 3.1.0 stable release. In any case I would recommend to wait and don't use phpBB 3.1.0 stable for about a week, any critical issues can be found :)

Sent.

I strongly recommend to read case studies http://alterbrains.com/joomla-extension ... se-studies and/or contact us before, this will minimize chance of having issues. Multiple sites itself is complex feature.

If you copy users from Joomla to phpBB and case-insensitive username or email of Joomla user is already presented in phpBB - this user is not copied. If user Admin1 logs in Joomla and his Joomla password is same but phpBB has another password ...

Thanks for that admin. Thats really good to hear. Alright, what happens in the case where the admin1 account in current Joomla installation has a different password to the admin1 of existing phpbb account which is going to be imported? In that case, as per the ...

Synchronization is based on case-insensitive username: once Joomla user 'Admin' logins - phpBB user 'admin' is also logged and vice-versa, same for logout, profile updates etc.

So you current Joomla user 'admin1' will match existing phpBB user 'admin1'

... to have NO menu item in the url For example, this is what I have http://www.domainname.com/menuitemname/pagename instead I just want in every case: http://www.domainname.com/pagename If so, what are the setitngs in the plugin to make it happen. And do I need to put that in each menu item or ...