This add-on enables the use of external HTML-files for displaying the comments. I've found the original internal solution with the LI-items not sufficient enough to handle my needs, so I wrote this add-on.
[update] The new version (1.0) supports settings in the database. Settings can be set from the Addon menu in the Admin panel. Minor bug fixes and updates in the code. New version number is set to 1.0 since I feel this is the first major release.