If you wish to migrate your forum from phpBB to bbPress than tke a look at this tutorial.

1. CMS2CMS
phpBB to bbPress
Forum Convertor

3.
phpBB to bbPress Forum
Convertor: How it Works Tutorial

4. You are considering about changing your forum platform? You
current one does not meet your needs? There is not enough
visitors on your forum and you can’t engage more? Whatever
reasons you have it is good that you are looking for a way to
improve.
Surely phpBB was a great forum software, but it was in the past.
This days it looks an outdated especially the design. And of course
it is not that SEO­friendly at all.
There is a wide range of forum platforms out there, which are more
flexible and has lots of distinctive features. One of them is bbPress.
This is modern forum software created in the way of WordPress. It
has very intuitive interface, is pretty simple to use and has great
amount of customization opportunities.
If you decided to move your forum to bbPress, you can check out
CMS2CMS: phpBB to bbPress Forum Convertor
With this plugin you will have your phpBB forum transferred to
bbPress with no coding skills required just in 7 simple steps.

5. Migration Setup
1. Download Plugin
First of all, you have to download CMS2CMS: phpBB to bbPress
Forum Convertor to your computer.

6. 2. Install the Plugin.
Go to WordPress admin panel and install the plugin. Click
“Activate” button and it will appear right in your dashboard.

7. 3. Register your CMS2CMS account
In order to move on, sign up for CMS2CMS, provide your email and
password.

8. 4. Connect to your phpBB forum
Now you have to create the connection between phpBB and
WordPress with bbPress plugin.. So, proceed with the following
actions:
● Download the Bridge file to your computer. The file will be
saved as zip.
● Extract the ‘cms2cms’ file from the archive.
● Via any FTP client dashboard upload the file into the root
directory of your source phpBB website. Root directory is the
top one with file index.php.
● Provide the URL of your source website and that is it.

9. 5. Select the Migration Options
Before you start the actual migration procedure, choose the
preferences for your phpBB to bbPress migration. You can elect
from the following:
● Clear current data including test one on WordPress before
Migration
● Migrate categories and pages/articles/posts SEO aliases
● Migrate images and attachments

10. 6. Try FREE Demo Migration
With CMS2CMS, you are able to check out the service before
actually use it. With Demo Migration, limited amount of pages can
be converted from you source phpBB website to the target one
bbPress for you to see how everything works for real.

11. 7. Full Website Conversion.
Start Full Migration and in a couple of minutes your forum will be
transferred from phpBB to bbPress. As soon as the conversion is
complete you will receive an email notification and be able to check
up your new bbPress forum.
Are you still waiting? Then don’t, try on CMS2CMS: phpBB to
bbPress Forum Convertor and your website will be converted
easily and swiftly. With this plugin, you will have automated and
accurate migration which you will enjoy for sure.