I use this extension in Joomla 1.7 and works fine. I found it after testing a lot of others. This was the best for me cause I can enable or disable comments for each article seperately. Also I can choose which comments to approve or not. I begin with the english version and I tried to translate to Greek in my site. It was easy to do so, except one particular world that didn't change in Greek language. The developer helped me immediately and with his help, the extension works fine now in my language. His response was quick and very helpful. Problem solved. Try out this extension and you will not regret it.