How to get Feature mod working?

I'm trying to run the Feature module on my Drupal 4.6.6 site.
Can anyone provide me with a clear, step-by-step procedure for getting Feature.module to work?

I uploaded it, and I think I installed it correctly, but when I got to admin/node/feature all I get is a blank white screen.

I read that you need to make a page with:

print feature_listing()

on it, but I don't know where or how.

I have cPanel with phpMyAdmin.
I tried doing that page on my Drupal site, in my cPanel filemanager in the Feature.module folder, and on phpMyAdmin, but still nothing.

I've searched the forums, but couldn't find a clear answer.
And I also posted my support request there.
Nobody answered it.
Help, please.

~Total newbie giving myself a crash course in webmastering as of March 2006.~