I am having issues installing WordPress 3.2.1 from my available Web Applications in Plesk.

and I click INSTALL and get this error message: Your PHP version (4.4.7) is not suitable for the application.

I have a windows 2008 Server with IIS.
In the Plesk CP, under the domain in question, it shows PHP version 5.2.13 and set to FastCGI.

so whats going on?