Regua has just released a new version of his Ajax Comments Posting WordPress plugin. The latest version 1.2 release on 21 December, 2007 fixes a bug where WordPress 2.3.1 server-response errors are not posted and also resolves jQuery’s conflict with Prototype. The changelog can be found at http://regua.biz/acp/.
I am actually the one who got the plugin working for WP 2.3.1. The plugin was originally only meant for older versions of WordPress. When I used it for this blog, I did not realize the incompatibilities until everything was in place and response errors like duplicate comments were not fetched. I spent quite a few hours customizing the plugin before that so going for a different plugin and wasting that few hours wasn’t a good idea. After some Googling and looking at the source codes of other jQuery-based commenting scripts I managed to get it to work with WP 2.3.1 and resolved the conflict with Prototype.
As I am not that good with Javascript, Regua has optimized the code and released the plugin as a new version. You can grab it from the WordPress plugin directory. I highly recommend it. Post a comment on this blog to see a demo.