Universal convert solution for phpBB, vBulletin, MyBB, xenForo, Drupal Forum, bbPress

[John.D]

Hi people,
I have four forums PunBB, Simple:Press, Vanilla and phpBB2. I need some Universal solution to convert those to any Forums like phpBB, vBulletin, MyBB... I tried some free solutions provided by forum creators, but those were not good solutions, a lot of data were not moved over, such as:
Avatars
User Passwords
User Register data
Forum parent-child relationships
Forum's last topic, last poster, number of posts and topics
Topic's number of views, last poster data..
File attachments, images.
bbCode/HTML

In another words, all converters don't work for me. I just found gConverter from the Twitter, it seems they do all what I need, they have a very rich portfolio and ton of good recommendations. I'll ask them to help me, however I want make sure that there aren't any free solution for such a works. Please let me know what do you think about this.

[John.D]

Google only returns gConverter.com. Ok I'll try. Another question is the phpBB-Wordpress and XenForo-Wordpress bridges, is there any suggestion for such a bridges?