I'm facing the same problem with OP.
On my Joomla 2.5 website, I have Disqus and Author Info Box plugin.
The thing is, after each articles, author info shows up after Disqus plugin. So if there are plenty of comments, it is very hard to see the author info.
What I'm trying to do is position Disqus to show only after author info so after reading articles, visitors will read author info first, then comments on DIsqus.
PS: The website is on blog.indosupra.com