Facebook Comments for WordPress show comments from different posts

Hello there, im using latest wp version and 3.1.3 version of comments plugin http://we8u.com/facebook-comments . I have my own theme with costum loop, it bassicly shows on homepage lastest post from category videos (id=4) and its comments. That post have costum field (id of a video on viddler) and the loop is working ok! With default WP comments everything is fine.

But when i replace wp comments for that Facebook comments i get this bug:

1. I add post in category video and it shows up on comments as it should
2. As soon as i add post in another category, i have comments from that post on my homepage, and every time i add post from other category than videos i get comments from that post on my homepage

I hope i explained it right.

Here is code i use for loop http://pastie.org/2846944