Numerous xthread 1.8 problem

[Hamster24]

that what the problem is i am not able to reproduce it on localhost.
i have crosschecked every template and compared with 1.6 working templates and they all are identical.
Even i used the htaccess which used to work with 1.6 (for google seo)
moreover this problem was reported by a user who was using a link which was a filterable xthread field link but when clicked page 2 it just loads the generic page 2 of that forum.