No input file specified and htaccess

[eluser]ELRafael[/eluser]
[quote author="Lobosaurus" date="1189549160"]I think it won´t work because I need to rewrite url index.php?blablabla and no index.php/blablabla[/quote]

Code:

RewriteRule ^(.*)$ index.php?$1 [L]

still no working?
maybe you don't have permissons to use .htaccess!!! i think that is the problem