Ok, I have now fixed the problem with the message I was gettig at the admin site. I found the problem was a single letter and it would be nice if you Dew can change that for the rest of those who are downloading.
$language = $gl["Language"];
I have changed the letter L (as it was before) with a little l
and added ;session_start();
on the 13th line instead of the 14th.
Im still having blanc page when I want to show the site (admin site works fine).