Loading modules on apache2

Hi everyone,
I am running php4 oh apache2 on a debian machine. What I am trying to
do is to load a module.

I use the LoadModule line and give the path of the .so file in the
httpd.conf found in /usr/local/apache2/conf/. I restart apache2 and
execute phpinfo() in the browser but for some reason the module does
not show up on the list of modules that are loaded.

What am i doing wrong. apache isn't complaining about not find the
file when restarting it obviously sees the file. so i am not sure how
I can make sure that this mod gets loaded. any help would be much
appreciated.

thanks