I have a VE running CentOS 4.5 and Plesk 8.2. The customer would like the most current version of Zend, but the VE has the latest template, zendoptimizer301-as4-tmpl-3.0.0-1.swsoft.i386.rpm We plan on upgrading the customer to Plesk 8.6 first.

Can I simply install Zend using their package? Is there another way?

How about PHP 5.x?