Not sure if you've solved this by now, but this'll help anyone else who might have the same problem.
Chances are there's a line in your httpd.conf file, just below a reference to the .htaccess file, that says:
AllowOverride None
Change it to:
AllowOverride All
P.S. Don't ya just love the f'wads who say 'read the manual'? Some people seem to forget too easily that they were new at this once too 😉