about url rewrite

[itsmani1]

these regular expressions are doing for me.
here is some explanation!!!!!!!

@ root dir i have pages like:
index.php, search.php, etc

Folder of css
Folder of images
Folder of uploads

Problem:::
css files on index and all the pages are coming form css folder
some of the images are coming form images folder and rest are coming
from uploads.

what i have to do is :::::
i have to rewrite urls
http://domain.com/posters/index.php?pag=news
http://domain.com/posters/index.php?pag=news1
http://domain.com/posters/index.php?pag=about
to
http://domain.com/posters/pag/news
http://domain.com/posters/pag/news1
http://domain.com/posters/pag/about

[rapaman]

this must looks like

RewriteRule ^posters/index\.php?pag=(.*)$ /posters/pag/$1

This rule for mod_rewrite.

Best Regards,
Dmitry.