Add to breadcrumb trail in phpBB

Do this before loading the template:

$template->assign_block_vars('navlinks', array(
    'FORUM_NAME'    => "link display text",
    'U_VIEW_FORUM'  => "http://url-of-page"
));

Common admin tasks in phpBB 3

Change the author of a post:

• Click on the post
• Click on the "Moderator Control Panel" link in the top left
• Click on the "Post details" link on the right-hand side (note: It might look like a triangle with a question mark in it)
• Scroll down to the bottom of the post, and you will see a drop-down menu to change the poster.

How to add a custom PHP page to phpBB3

There is a tutorial explaining how to add a static HTML page, with phpBB header and footer.

This is how to add a dynamic PHP page in a similar way:

1. Go to ACP | General | Security settings, and set "Allow php in templates" to "Yes".
2. Follow the tutorial at: http://wiki.phpbb.com/Practical.Add_custom_page
3. In the template (e.g. about_us.html), replace where it says "Content in here" with <!-- INCLUDEPHP relative/path/to/your/php/page.php -->