No, I had not changed it. I managed to fix it though... somehow I had a random letter before the php at the beginning of the file!

I do have another question... in the original post it says if you have more than 2 files make it (1,nnn) what does that mean? She wants to have maybe 4 or 5 different files. They are all named 1.jpg 2.jpg etc...
How should I code that?

I tried
srand((double)microtime()*1000000);
define('HEADER_LOGO_IMAGE', 'logo' . rand(1,2,3,4) . '.jpg');

but that doesn't work.