More detail needed on a certain wiki troubleshooting part

Hi Guys,

IM getting the below issue

"There is a white page after I submit my database settings"

The wiki says to

"Check that the Apache mysql module is installed and is being loaded."

How do i do this? Im using apache 2.2, mysql and php are also installed im running a centOS vps.

I appears that the module isnt loaded as ive checked the httpd.conf file but how would i go about loading it...

Thanks for any reply's!