ok nemmeno in questa maniera funziona

RewriteEngine On
RewriteRule ^index.html index.php

RewriteRule ^topdowns.html modules.php?name=Downloads&d_op=TopRated [L]
RewriteRule ^popdowns.html modules.php?name=Downloads&d_op=MostPopular [L]
RewriteRule ^newdowns.html modules.php?name=Downloads&d_op=NewDownloads [L]
RewriteRule ^downloads.html modules.php?name=Downloads [L]

Perchè non mi funziona? HelpMe!!