Let me clarify: you want to display links to older posts and newer posts at the bottom of the category pages? Please note that Kabuki does have built-in pagination but it is numeric, i.e. display numbers instead of “older posts” and “newer posts”. The pagination will display automatically once you have more posts in a particular category than is set by the limit in “Settings -> Reading”, “Blog pages show at most” option.
In case I misunderstood your question, please let me know!
I’ve double-checked the pager on a fresh install of Kabuki, and it seems to be working properly. Bearing that in mind, let us first try to update your theme files: please download this archive from my repository, unzip it, and upload the files into the following folders via ftp:
– “category.php” into /wp-content/themes/Kabuki/
– “pager.php” into /wp-content/themes/Kabuki/includes/pager/
Refresh your webpage and let me know if that fixes the problem!