i need some help..

i have a page
search_result.php?make=NEW&id=23

i want to change it to /category/23/

i want to access the same page search_result.php but only the name of the page should be different in the url.. i tried writing rewrite rules but it is not working.. although the redirect page is working but changing page name is not working here is the code i am using in htaccess.

Options +FollowSymLinks
RewriteEngine on
RewriteRule search_result/make/(.*)/id/(.*)/ search_result.php?make=$1&id=$2
RewriteRule search_result/make/(.*)/id/(.*) search_result.php?make=$1&id=$2

it is not working on localhost neither on server

can anybody help me out to resolve it or any other sugguestion would be nice..