CodeIgniter with cPanel. mod_rewrite problem

[eluser]Unknown[/eluser]
Hey guys,

So I'm new to this cPanel stuff, my friend just hired me to program simple PHP so I decided to use CodeIgniter (which I'm very familiar with, especially on how the routing works). I tried uploading the CodeIgniter to the cPanel and weird thing is... my .htaccess doesn't work.

Here's what's inside my .htaccess:

Code:

<IfModule mod_rewrite.c>
    RewriteEngine on
    RewriteCond $1 !^(index\.php|images|js|scripts|dompdf|uploads|robots\.txt|css)
    RewriteRule ^(.*)$ ./index.php/$1 [L]
</IfModule>

I followed the user guide located here : http://codeigniter.com/wiki/mod_rewrite/

And my only problem is, I don't know how to do steps 3 & 4 on the stated link above. Can anyone help me out? :O I'm a total noob when it comes to things like this Or maybe there's something wrong with my .htaccess file?