post huge text

hi
i find problem , ext suhosin installed in server and configuration of suhosin change POST length
suhosin.post.max_value_length 65000
please help me to create htaccess file for change setting

i added this line to htaccess :

<IfModule mod_php5.c>
php_value suhosin.post.max_value_length 6500000 
php_value suhosin.request.max_value_length 6500000 
</IfModule>

but not work in phpinfo show suhosin.post.max_value_length 65000
php 5.2.5