I need to install a script that need PHP 5.1 and with Plesk 8.0 the version of php istalled is 5.0.4 . Have you some idea to solve ? Using apt-get yum or similiar is it possible to update the PHP version ? If i launch a simple rpm (for example php-5.1.4-2.fc4.remi.i386.rpm ) exist the risk to damage Plesk ? What is the system to update php to 5.1 ?