Php – ioncube not load after upgrading to php 5.4

i am afraid that i broke somthing in my vps :/ i hope you can help me.

i am on ubuntu-12.04-x86.
and i moved to new vps so i tryied to upgrade the php to the news version from 5.3 to 5.4.
anyway after installing i get this messages:

fild loading /usr/lib/php5/20090626+lfs/ioncube_loader_lin_5.3.so /usr/php5/20090625+lfs/ioncube_loader_lin_5.3.so: undefined synbol: php_body_wri 
php 5.4.8-1~presise+1 (cli) (built(oct 29 2012)

i need to mention that the server is working and php also working but when i do phpinfo
there is no

"with the ionCube PHP Loader v4.0.14, Copyright (c) 2002-2011, by
ionCube Ltd."

which was before :/
i installed with this guide:http://www.upubuntu.com/2012/03/how-to-upgrade-install-php-540-under.html

i need to worry?

edit
ok so think i found the solution inspired by Devator answer i downloaded the last ioncube from their website in zip file. in this zip file i found the file ioncube_loader_lin_5.4.so than i uploaded the file to the folder where i saw php looking for the 5.3 version eg:"/usr/lib/php5/20090626+lfs/", than i go to my php.ini file and put the line but it didnt work so i saw file 00-ioncube-loader-5.3.ini in conf.d folder in there i saw the line zend_extension=/usr/lib/php5/20090626+lfs/ioncube_loader_lin_5.3.so i edited to zend_extension=/usr/lib/php5/20090626+lfs/ioncube_loader_lin_5.4.so restart apache and now i saw the line where php info

'This program makes use of the Zend Scripting Language Engine:
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies
    with the ionCube PHP Loader v4.2.2, Copyright (c) 2002-2012, by ionCube Ltd.'

sorry for bad english :/
problem solved i think so