Need help with widgetized sidebars

OK please see my site for reference as to what I’m talking about
http://www.skitsoid.com

The theme originally wasnt widgit ready so i made the functions.php file which looks like this

<?php
if ( function_exists('register_sidebar') )
    register_sidebar();
?>

and then posted this line of code into my sidebar.php

<?php if ( !function_exists('dynamic_sidebar')
|| !dynamic_sidebar() ) ; ?>

You can see what happened on the website.

Now what i want to do is get rid of that old sidebar at the lower right and place the new widgetized one in its place. I’m a noob at this and do not know anything much concerning HTML. What php file is the “old” sidebar info in? I will paste my sidebar.php file here. if anyone would like me to post up other .php files just let me know

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