the simplest way to accomplish this is to have a folder for the contact form file:
and another folder for the User Registration Files:
and place the files for each in their respective folders.
other wise, you would need to rename each WA_Globals file, for example:
and change the require once code to point to the correct one on each page:
<?php require_once( "WA_Globals/WA_Globals_CF.php" ); ?>
<?php require_once( "WA_Globals/WA_Globals_UR.php" ); ?>