Great hack.. can't wait till it works, but I have some problems!

This is coming on the mainpage (Boardhome):

Warning: Cannot add header information - headers already sent by (output started at c:\http\www\vvb\admin\functions.php:2109) in c:\http\www\vvb\admin\functions.php on line 1466

and I get these when I'm trying to connect to the admin CP:

Warning: Cannot add header information - headers already sent by (output started at c:\http\www\vvb\admin\functions.php:2109) in c:\http\www\vvb\admin\functions.php on line 1466

Warning: Cannot add header information - headers already sent by (output started at c:\http\www\vvb\admin\functions.php:2109) in c:\http\www\vvb\admin\functions.php on line 1466

Warning: Cannot add header information - headers already sent by (output started at c:\http\www\vvb\admin\functions.php:2109) in c:\http\www\vvb\admin\global.php on line 133

Warning: Cannot add header information - headers already sent by (output started at c:\http\www\vvb\admin\functions.php:2109) in c:\http\www\vvb\admin\global.php on line 159

Does anybody know what I can do about it?
PLEASE!!!