Wordpress - Filter Posts w/ AJAX & jQuery

I am working on a custom Wordpress theme where users have the ability to filter what content they see. In it's current state, a series of checkboxes are outputted (based on pre-defined categories). When a user checks (or unchecks) a checkbox, the posts refesh (via AJAX & jQuery). Most of this functionality is already working, but there is an issue when it comes to the pagination. Pagination does not work at all. We are using wp-pagenavi to handle pagination. I am looking for someone to modify to code to get the queries working properly, and pagination working. This is extremely urgent and should have been completed earlier this week.