Hi,

It would be nice if you can upload this module - Advance Forum module

It have many new features to control it and like autor describe it as "fully customizable styles to make your forum look like more traditional forums"
Here is the link http://drupal.org/project/advanced_forum

I noticed a bit complicated instalation proces for this module, so if it is true, there is a link of some simple addons to Forum module that can be usefull. http://drupal.org/node/227121

Finaly there is a more advanced module which represent phpBBforum modul in drupal. Here is the link http://drupal.org/project/phpbbforum it sound simple. (by me it may be the best solution)

Thanks in advance

Neo