Copperminefetch (php) not working

I’m trying to install CoppermineFetch 1.6.2 ( so that I can use images from the photogallery as a photoblog. However, it doesn’t seem to be working, it returns a blank page, the code is simply the header, body tag, then closes them.

What am I doing wrong? All my other PHP scripts work just fine, its just these. I’m using them because I know we can’t use SSI, so I need to call up the .PHP script inside an tag?