yes, found: http://www.haughin.com/code/simplepie/
and tried with php 5.3 installation ... simply do not work
I recalled there was a problem in simplepie for assign new by reference, just downloaded newer code from http://simplepie.org/ ... still same problem.
sed 's/=&\ new/=\ new/' simplepie.inc > Simplepie.php
if ( ! defined('BASEPATH')) exit('No direct script access allowed'); to first line, removing ?> from last line, make things work.
Some comment on new by reference are in http://php.net/manual/en/language.references.php
On why and where reference are bad there is a beautiful article: http://schlueters.de/blog/archives/125-Do-not-use-PHP-references.html
and another on "strange" things that could happen: http://schlueters.de/blog/archives/141-References-and-foreach.html