[support] d6: how can I remove the "previous/next topic" in forum?

Hi, I upgraded to d6 and I have still this problem... and I don't remember how I solve it in d5. Remove the links to previous and next topic when viewing a node in the forum. I'm sure I must write something in the template but I don't know what. Searching in drupal.org I find information about d5 and d4...