This forum is used all over the internet with or without Joomla and its very powerful and pretty easy to customize to your likings with adding MODs.

To integrate phpBB3 with Joomla 1.5.9 I have tried JFusion and didn't care for the results. I checked with some pretty popular websites that carry alot of traffic that use Joomla + phpBB3 and asked them what they use and they all said RokBridge by rocketwerx.

The first time I installed it, I had issues but I had the SEF options turned on. Once I turned those off, everything worked.

I then subscribed to RocketThemes phpBB template club so I could get the same template for phpBB3 that I had for my Joomla site so it appears integrated.

Then I acquired a search plugin from Connectage that allows searching of the phpBB3 forum using the site search.

Everything is working great... Next step is to integrate/share the JomSocial Avatars

I realized two days ago that my issue with JFusion had nothing to do with JFusion but more of user error.

After looking at the comparison of Rokbridge and JFusion the differences are pretty straight forward. If you want to add anything else to your site you may need to bridge or change from phpBB3 to a different forum then JFusion has the capability. Rokbridge is strictly for phpBB3 integration into your Joomla site.

Support on the JFusion website is excellent as well as support for the Rokbridge (if you are a member).

I'm using JFusion with my current vBulletin forum integration into my Joomla 1.5.10 website with success.

I recently updated a site using p8pbb Bridge and it was awesome since you don't have to edit any files accept the .htaccess file located in your phpBB3 folder with the following code.  Add it right after "RewriteEngine On"

RewriteCond %{REQUEST_FILENAME} /phpBB3(\/?)$
RewriteRule (.*) /forums [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpBB3/index.php
RewriteRule (.*) /forums?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpBB3/ucp.php
RewriteRule (.*) /forums/user?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpBB3/viewforum.php
RewriteRule (.*) /forums/forum?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpBB3/viewtopic.php
RewriteRule (.*) /forums/topic?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpBB3/memberlist.php
RewriteRule (.*) /forums/members?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpBB3/report.php
RewriteRule (.*) /forums/report?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpBB3/posting.php
RewriteRule (.*) /forums/post?%{QUERY_STRING} [R=301,L]

RewriteCond %{REQUEST_FILENAME} /phpBB3/mcp.php
RewriteRule (.*) /forums/moderator?%{QUERY_STRING} [R=301,L]

the only other thing you add to really do is upload the jprosilver template which removes the header stuff so in a wrapped environment it looks better.

jprosilver_3.2.0.zip