How to remove index.php from URL

Hi!
Iam newbie to YII framework and using its latest vesion 1.1.0. I have enabled seo friendly urls through config file. My next problem is that how can I remove 'index.php' from URL. Iam using following .htaccess file.

Options +FollowSymLinks
IndexIgnore */*
RewriteEngine on

# if a directory or a file exists, use it directly
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

# otherwise forward it to index.php
RewriteRule . index.php

Can some one guide me how to solve this.

Thanks in advance