php4 and apache doesn't work together

Hi everybody, I am rookie in Linux so I have a problem. I've installed php4 and apache server according to what was described in a documentation for php4 (installation for linux as an apache module, example 2-1). The apache server is working. Php too, but not exactly together. I 've preapared a file "test.php" with <?phpinfo()?> statement. Writing an address: my.domain/test.php gives me a php4 info page. This is O.K. Next, I've preapared a file "test.html": <!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> <head> <title>test PHP</title> </head> <body> Test page <script language="php"> echo ("Hi, I'm a PHP script!"); </script> </body> </html> Writing: my.domain/test.html gives: Test page. And only this. Not even a track of: Hi, I'm a PHP script! What went wrong? I use RH 6.1, apache 1.3.12 and php4.0.1pl2 Thanks, Przemek (Bulbon)