problem about imagick extension

[rutrmutt]

i have to install imagick on centos

this is step i do
1) yum install php-devel
2) cd /usr
3) wget http://pear.php.net/go-pear.phar
4) php go-pear.phar
5) See the following line in /etc/php.ini [include_path=".:/temp/PEAR"]
6) pecl install imagick
7) Add the following line in /etc/php.ini [extension=imagick.so]
copy imagick.so from /usr/lib/php/modules/imagick.so to /opt/lampp/lib/php/extensions/no-debug-non-zts-20060613
service restart

and it warning

PHP Warning: PHP Startup: imagick: Unable to initialize module
Module compiled with module API=20050922, debug=0, thread-safety=0
PHP compiled with module API=20060613, debug=0, thread-safety=0
These options need to match
in Unknown on line 0

i want imagick show in phpinfo()
help me please
thank you