Upgrade from 3.7.3 to 3.8.2
 

I'm trying to upgrade from 3.7.3 to 3.8.2 and I have some bad errors.

When running the upgrade file it has this on the header of all the upgrade pages (located before ther doctype in the source code):
==========*/
?>==========*/
?>

this is on all pages.

Once the upgrade has completed, I tryied to login, but now I am unable to login or view the forum - IE gives me an "cannot display the webpage" error; whilst Firefox gives me this error: "The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression."

Any Ideas??