Noa,
Very sorry about the delay. To start, feel free to pass our email along to EasyBlog (
This email address is being protected from spambots. You need JavaScript enabled to view it.). We love hearing from other developers.
As for the comment box, I just looked at the page you linked. If you look at the HTML on the page, you'll see the <fb:comments statement and in there, it loads:
www.geoparadise.org//plugins/system/jfbcsocial/fb_comments.css
In that file, you should put the code I pasted above. That file is actually loaded first by Facebook, and then it's included in the iFrame. You can't modify how the comment box looks using the CSS in your template.
Now, for the bad news, and part of the reason why we took so long to respond. Facebook recently updated it's Comment module. This update does not allow for styling overrides, so the fix detailed above may not work for long. What we use is now the "legacy" version. In 3.2 (coming out in the next few weeks) will use the 'updated' version, which will prevent extra styles.
We're looking into a lot of options to allow for basic styling like you need, as others have non-white backgrounds on their site. If there isn't a solution we can find, we will submit it as a bug to Facebook so that hopefully they add some way to set the background color (at least) for the comments box.
Hope this all helps, and if not, let us know. Again, sorry for the delay, and good luck!