A poor French lost in the meanders of IMP

[Eric Piollet]

I use :
- RedHat 6.2
- Apache 1.3.20

- Horde 1.2.6
- IMP 2.2.6
- PHP 4.0.6
- MYSQL 3.23.41

I have the phplib-7.2d.tar.gz

I had a look in the install file (/horde/phplib/readme) for the install of
phplib
But I had to make a mistake ???
I still have this message :
Fatal error: Call to undefined function: page_open() in
/etc/httpd/htdocs/horde/imp/mailbox.php3 on line 104
Why Why Why ???

if somebody can explain me step by step the installation of phplib

Thank you very much !!!!!!!!!!!!!!!!!!!!!!!