I'm using flip blog theme (got from themeforest) on this test website : http://www.unjourunmonde.com and I've tried to add comment on fullwidth template page. I've simply copy the code from the single.php
Basically it works but I don't understand why the box is tiny and not like on a single post ?
see here for example : http://www.unjourunmonde.com/birmanie-2008/
Any help will be appreciate ! Thanks