Show latest comment from a post

i have to show the last post from a specific category, and also show the last 2 comments

the thing is that i have to show the last post from a category excluding a specific tag wich is called “featured”

so i have

[Code moderated as per the Forum Rules. Please use the pastebin]

the problem is that i have to apply
<?php $recent = new WP_Query(array('cat' => 5, 'posts_per_page' => 1, 'tag__not_in' => array(8) ));?> to the query so i can exclude the tag “featured”
but now, the last comments function is not working
any idea?