From backoffice I am set comment reply - anyone. Now anyone can submit comment on ad item, but older comments cant reply. if abc user submit 1 comment on item 100 number then its shown. But here xyz cant reply on abc posted comment!

where is code modification...?

osclass v8.1.1 with epsilion theme.

Not integrated into other than Sigma theme yet.

any possibilities if use sigma code to other theme ..?

its work ...?

Yes it will.