Link Display

Hi everyone, I just upgraded to WP from b2, so I am still getting used to all of this. I am a noob, so maybe you guys can help me out.
I would like to display my links in seperate categories on the main menu. Just a simple organizational thing. (e.g. if I wanted all my friend’s weblogs under a section titled “friends” in the side menu). This is the line in the index.php which displays the links, but I don’t exactly know what to do from here. I am guessing this displays all of the links according to what category you gave them.
<?php get_links(-1, ‘

• ‘, ‘

‘, ”, 0, ‘_updated’, 0, 0, -1, -1)?>
Any ideas on how to display all the link in their seperate categories… instead of one list that simply say “categories”?
I hope I got my point across, lol.
thanks, S.
http://www.snogfever.com