[PHP-INSTALL] problem with libphp5.so

[David Gonzalez Rivera]

I followed the instruction of php5.1.1 to install my webserver.
currently i have

Apache 2.0.55
PHP5.1.1
Mysql 4.1

the problem is that the module won't load. it give me a zend error

Syntax error on line 232 of /usr/local/apache2/conf/httpd.conf:
Cannot load /usr/local/apache2/modules/libphp5.so into server: 
/usr/local/apache2/modules/libphp5.so: undefined symbol: _zend_list_delete
[EMAIL PROTECTED]:/usr/local/apache2/conf$

HOpe to get answered soon,

Thanks,
David