My quess is ur php isnt working on ur IIS. Try a simple php file with only the following code to see if ur php works
echo("php is working");
if the tags show up your php isnt working
I php running on IIS. However I've been working on it for days to get php to work on IIS and I recommend u just download Xampp which will make php and mysql work with one simple installation prosedure.
I am DJ Kat...that's my name. Its a D and a J and a Kat with a K.