Drupal phpbbforum bridge with PhpBB SEO

[lo0m]

Hi there
I run into a problem:
I have a Drupal Installation with a phpbbforum bridge module.
On the Forum the phpbb SEO mod works well, but when i want to have the forum inside a drupal page i have an error:

Fatal error: Call to undefined method stdClass::set_cond()

Is it because of an missing phpbb_seo.class object or something ?