<span class="commentAuthorName">
                <?php echo JText::_('K2_POSTED_BY'); ?>
                <?php if(!empty($comment->userLink)): ?>
                <?php if($comment->userID): ?>
                    <a href="<?php echo $comment->userLink; ?>" title="<?php echo $comment->userName; ?>" rel="nofollow">
                <?php endif; ?>
                    <?php echo $comment->userName; ?>
                <?php if($comment->userID): ?>
                    </a>
                <?php endif; ?>
                <?php else: ?>
                <?php echo $comment->userName; ?>
                <?php endif; ?>
            </span>

					<?php if(!empty($comment->userID)): ?>
						<?php $user = JFactory::getUser($comment->userID); ?>
						<?php echo $user->username; ?>
					<?php endif; ?>