I created a plugin to Sync Disqus with EE comments. Also, it provides quick tags to create the JS Output for Disqus links and Comment blocks. Go check it out. https://github.com/marcato15/Disqus . If you need support, hit me up on my twitter @marcato15. I will be posting it to Devot-ee and using that for support once I get a few people to test it out and make sure its all good. Consider it beta quality for now. (ie. backup db, careful about use on live production sites.)
Link again https://github.com/marcato15/Disqus