Hosting Pico CMS on Dreamhost Shared Hosting

I want to host a Pico website ( on Dreamhost Shared Hosting.

The Pico CMS documentation says it needs:

How do I find out what version of PHP Dreamhost Shared Hosting runs, and how to edit the configuration files to enable mod_rewrite? And also tweak the .htaccess file if required?

Is it even possible using the Shared Hosting plan? Or must I upgrade to a VPS?

Any assistance would be appreciated.

Thanks in anticipation of your replies.

Shared hosting uses PHP 5.4 by default. Mod_rewrite is enabled by default as well.