googlefroogle error when trying to create a feed

[marvin]

following error comes up when I try to run a feed file from step one:

"Warning: main(includes/header.php) [function.main]: failed to open stream: No such file or directory in /home/herbschi/public_html/zen/googlefroogle.php on line 131

Warning: main(includes/header.php) [function.main]: failed to open stream: No such file or directory in /home/herbschi/public_html/zen/googlefroogle.php on line 131

Fatal error: main() [function.require]: Failed opening required 'includes/header.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/herbschi/public_html/zen/googlefroogle.php on line 131"

I opened googlefroogle.php but cant tell what file is in question.

any ideas???
Thanks

[marvin]

A little clarification. Step one is:

"STEP 1: Click [HERE] to create / update your product feed."

[marvin]

Forrrrrrrrrrrrgggggggggetttttttt it.
Dummy put the wrong googlefroogle.php file in the right place.

Now feed works like a charm. no tomeouts, creates xml file for 200 items in 15 seconds.i
Fantastic contribution.