New Install Problems

I have just uploaded all the files to my served for the latest version of open cart.
When I go to my website address to launch the auto installer all I get is the following message ---> PHP5.3+ Required
Why is this? Never seen it before.

Thanks for any help / suggestions.

DJ

This is the first Error message, of a whole Bunch, still waiting, around the corner, and just telling you, that you'll need to update your Server Software to PHP5.3, before continuing with the installation. But don't worry, by the way you tried to upgrade something with a non-matching, non-upgradable Version, you will be sorry, not to have checked around the Forum, before you screwed up so badly...

About PHP5.3, Google knows more about it.
Ernie

Actually figured it out and changed the setting for the php in my hosting site. Worked fine except now with one of the templates I bought..... that just screws EVERYTHING up. Oh well back the drawing board.