... structure of my site: www/bankomatchik.ru/forum/ Is that ok that the name of Phpbb3 is just "forum"? I'm worried because your SEF links begin from /forum/. 2. Names of themes have cyrillic characters. It will be automatically convert to latin symbols in SEF links?

Yes, all links in phpBB's outcoming emails are already SEF and pointed to wrapped forum.

... Hacks / Combat Arms Hacks and u can see that it has the vip features they pay for. Im currently in the process of using noicACL to display VIP links to the VIP forums for the usergroup they pay for, that way its easily accessable. If you want i can help you set this up, but not for free as ...

... URLs, all of them will be redirected to new bridge's URLs with 301 status (so Google will know that the page address was changed). The usual phpBB links in 3rd party phpBB MODs like Recent Topics are also auto-converted to new format. The component is encrypted and you can't modify it - though ...

Something "nice-2-have", a template version which sets all external links to 'rel="nofollow" target="_blank'

... Is that OK? OK 3. Will ioncube slow my site down or add to the server load? No, you won't see the difference. 4. I'd like the phpBB profile links to point to the community builder profiles. Is this possible? Yes, bridge can redirect phpBB profile links to point to the community builder profiles. ...

... and Joomla are in different databases. Is that OK? 3. Will ioncube slow my site down or add to the server load? 4. I'd like the phpBB profile links to point to the community builder profiles. Is this possible? 5. I'd like the avatar from Community builder to be used in the phpBB forums. Is ...

Thanks. I'm insterested also to know what will happen to my non-SEF phpbb3 forum links? Are they going to be non-SEF after the integration? If not, how the SEF is going to decide how to display my forum links? phpBB doesn't have SEF links by default. Some more questions: ...

... URLs", "Use Apache mod_rewrite" are required. Thanks. I'm insterested also to know what will happen to my non-SEF phpbb3 forum links? Are they going to be non-SEF after the integration? If not, how the SEF is going to decide how to display my forum links? Some more questions: ...

That will create additional server load, not very good idea.
CB uses such links and use 1 query to get username for each link to user profile, so i.e. CB simple users list page uses 63 database queries, some of them are even equal. This is very bad.