There was a major bug noticed with expose.xml file and in the comxml-php4-to-php5.php file. This is a quick view at the file:

Require PHP5, uses built-in DOM extension.
To be used in PHP4 scripts using DOMXML extension. Allows PHP4/DOMXML scripts to run on PHP5/DOM. (Requires PHP5/XSL extension for domxml_xslt functions)

 Typical use:
 {
  if (version_compare(PHP_VERSION,'5','>='))
   require_once('domxml-php4-to-php5.php');
 }

-BUG: Unable to login to PHP5 Album Manager for Expose PHP5 Alpha -FIXED-