[Typo3] Modifie search.php not working

[elah at radum.org]

 Hi all,

 Can anyone tell me how to modife search.php? Because I tried to modifie the
path in this file, and the only thing I get is this:

1: Fileextension "php" was not allowed!

 It's the first time when this happens, and I have no ideea why. Please help me
with this one. 

 Thanks,
 Mihaela