For stability, security, and practicality, we trail the latest version of PHP.
We are also limited by the latest version of these programs that is compatible with HSPC (for VPS-based accounts) and Plesk (shared hosting accounts).
If you require a version of PHP that is later than the version available for your account our VPS hosting accounts allow you to manually install software, such as a newer version of PHP. When adding applications to your VPS, do not install the HSPC application templates for PHP or mysql. If you have installed application templates for PHP and/or mysql you will need to remove these application templates.
Next you would need to acquire the appropriate RPMs for php (and mysql if you need it). One source is http://rpmfind.net . If you are unfamiliar with this process you may want to find someone with experience installing Red Hat/Fedora Core rpms. One other option would be to use our Site Management Services (http://www.simplywebhosting.com/websitemanagement.shtml). Send an email to firstname.lastname@example.org with what versions of PHP and mysql you would like us to install and we will put together a quote for you.
Note: We can only directly support programs installed through the HSPC application templates or programs that we have installed into your VPS.