firstly, when you say 'you guys' I am just a user like yourself...am just trying to help out.
now, the index.php file in my image is one that I created myself and isnt created by the PCMS installation....
If you keep the PCMS structure within the powercms folder that you have created (which I wouldnt recommend) then you would need to edit the path in
So where you currently have
<?php require_once("WA_CMS/WA_CMS.php"); ?>
to reflect where that is being found in relation to the root...
So, you could try
<?php require_once("powercms/WA_CMS/WA_CMS.php"); ?>
I hope that this helps.