Stefan Borchert schrieb:
[...creating hierarchical forums with drupal_execute()]
Ok, I this seems to be impossible with D5 (http://drupal.org/node/106015).
(The other option is to create the containers first, create a mapping array (old id from fud => new tid in drupal) and then create the forums. But this would be the last option.)
I'll have to do this.