Recent Global Posts Feed could not be found

Hello. I installed Post Indexer and Recent Global Posts Feed ... I rebuild the post index and tried to find my feed like discribed : http://mach3.de.com/wordpress/wp-content/recent-global-author-posts-feed.php?author=USERID

So, I only have one user SUPER ADMIN - so I only take that line

http://mach3.de.com/wordpress/wp-content/recent-global-author-posts-feed.php

Not Found

The requested URL /wordpress/wp-content/recent-global-author-posts-feed.php was not found on this server.
Apache Server at mach3.de.com Port 80