php extension problem

Hi all

Its in the log

Code:

PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20060613/lzf.so' - /usr/lib/php5/20060613/lzf.so: wrong ELF class: ELFCLASS32 in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20060613/pdo.so' - /usr/lib/php5/20060613/pdo.so: wrong ELF class: ELFCLASS32 in Unknown on line 0
PHP Warning: Cannot load module 'pdo_mysql' because required module 'pdo' is not loaded in Unknown on line 0
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20060613/fileinfo.so' - /usr/lib/php5/20060613/fileinfo.so: wrong ELF class: ELFCLASS32 in Unknown on line

How could I reinstall fileinfo.so and pdo and lzf reinstall correctly

The system is an debian 5 apache2 and php 5.2.10 from dotdeb.

I've installed php-geoip from the debian database too, what must I entry in horde, that it could use it?

thanks
admins