the joomUrl setting is url to joomla , and hence it is http://www.genealogija.lt
The $joomRel setting is relative path from forum to joomla, and hence if you put forum in subfolder of joomla, it is always ../
The question: my user mustuke is registered in website (in forum don't)
Should I register it in forum the same or it should work automatically? Now it don't work
You will be registered in forum automatically, once you login in joomla and then visit forum.
You must ensure that you've enabled the joomla 1.5 authentication plugin in phpbb backend,
and of course tell the bridge you want user integration by modifying the $joomIntegrate setting (value 2 or 3). I assume you've created the joomphpbb_bridge table too.
The question: should user be registered at first where? I see that I got in joomla another administrator like in forum but I can't connect with its psw to Joomla
Please work first with a user that have admin right , both on joomla and phpbb side, and same username. You'll see that the bridge work, once when you login in joomla, you are automatically in phpbb . Get the bridge to work first with an admin account, then you'll be thinking of any other regular user (would just work anyway)
Just to clarify things more, when bridge user integration is enabled, user will have to register and login only in joomla. If you are unable to login in joomla, ,be aware that unless you visit a page that display forum , the bridge have zero impact on joomla behavior, and hence it's a different problem.