Some PHP page not displaying in IIS7

[oxyi]

Hi,

 

I've follow some guide and installed newest version of PHP on Windows 2008 IIS 7.

I've also configured mySQL and phpmyadmin.

 

Phpmyadmin works perfectly fine, but when it comes to this exist site that I am about to port over, it has some weird issue.

 

First, all the php pages were displayed with the code, so I got that taken care of by enable the short open tag.

 

So now I can see some of the page, but within the same directory there were other php files, when I tried to browse them, I get an internal 500 error, and I take out the HTTP Friendly error, and it says something about SCRIPT host error..

 

As of right now, I am re-installing the PHP and adding it by Fast-CGI handler,  anyone know what's wrong with my php ?

 

Thanks !