PHP 5.5 on Basic "Happy" Hosting?

I subscribe to the basic “Happy Hosting” service run by Dreamhost, and was wondering if it is somehow possible for me to have PHP 5.5 on my server.

I have tried to run the PHP 5.5 install script on the wiki, via SSH, but obviously, due to the nature of my hosting plan, I can’t manually execute code(as far as I know know).

Have any of you been able to get PHP 5.5 on your Dreamhost hosting services?

5.5 isn’t available yet on shared servers.