"Log In to See Answers"

I would like to have it where guests / public users can see the questions but can't see the answers / reply's unless they are logged in. Searching the forums I found this http://stackideas.com/forums/log-in-to-see-answers which seems to be addressing the same question. The issue for me is I'm not 100% sure what the answer means.

Unfortunately there's no such settings currently but I have added some tweaks in the file /components/com_easydiscuss/themes/simplistic/post.php at line 57,

	<?php if ($system->my->guest) { ?>



	<?php } else { ?>

		<?php if( $answer ){ ?>

		<div class="discuss-answer discussAnswer">

			<a name="answer"></a>

			<?php echo $this->loadTemplate( 'post.reply.item.php' , array( 'question' => $post, 'post' => $answer ) ); ?>

		</div>

		<?php } ?>

	<?php } ?>

You just need to fill in the first "if" statement with your html codes for guests.

The part I don't understand is the last part"You just need to fill in the first "if" statement with your html codes for guests". Can anyone be a little more descriptive of what exactly I need to put here please.

Thanks so much