Hi. I have downloaded the latest version of WP. 2.8.1 yesterday and tried to use latest version of the plugin( 0.4.7-2 stable). But it seems that the nested comment does not work. The second issue I have found was if “Users must be registered and logged in to comment ” function is enabled, the plugin does not load.
I think the problem with the nested comment is happening because although you have tried to override the original comment-reply.js with comment-reply.dev.js, there is a bug when you try to override the parent.value for the input tag.
Both js script use document.getElementById(comment_parent) but when you are using the tinymce, there`s another “comment_parent” id associated with a span tag for tinymce just above the input section. getElementById only returns the first ID. Hence the value for the input tag with id comment_parent is not being set.
The second bug is because $user_ID seems to be always false(is this a “global var” in wp?). hence it will only work when !get_option(‘comment_registration’) returns true.
Hope this helps.
BTW: I have absolute NO Real experience of JS/PHP/CSS/HTML