Upgrading to PHP 5.2.x

[deltatech]

I am running plesk 5.2 and SiteBuilder. Last time I attempted to upgrade my PHP, it trashed sitebuilder and I had to pay for a support call to have parallels downgrade my php back to 5.1.6. But that was when I was running plesk 9.3

Is it now safe to upgrade to PHP 5.2.x I see that there are two versions of PHP installed currently and the panel is using 5.2.6. How can I upgrade the main version of PHP and will it be compatible with SiteBuilder

# /usr/local/psa/admin/bin/php -v
PHP 5.2.6 (cli) (built: Oct 30 2009 16:54:36)
Copyright (c) 1997-2008 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies

# /usr/bin/php -v
PHP 5.1.6 (cli) (built: Jan 14 2010 13:11:11)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies

 

[IgorG]

Try it - http://www.atomicorp.com/wiki/index.php/PHP