[Plugin: Readability Buttons (readability.com)] Position on page

I’ve been looking for an alternative to include Readability on our site, and have found your plugin (which seems to be the only one).

Do you have any suggestion on how to include it on our site? It’s an online magazine, and I’d like to include it with the articles (posts). However, we don’t use widgets except for the footer. I have tried there, but the position is not right: whatever option I choose, it stays on the left.

Here you have a sample article on our site.

Any suggestion will be welcome!

http://wordpress.org/extend/plugins/readability-buttons/