Alignment Center problem on Big 100 themes

Hello,

I noticed that the Big 100 themes have a problem with the “Alignment Center” command on WPMU 2.5 and 2.6. When I upload an image and select Alignment, Center it produces the following codd:

<img class=”aligncenter size-medium wp-image-47″ title=”wiki_ed” src=”http://blogs.bgsu.edu/testblog/files/2008/11/wiki_ed.jpg&#8221; alt=”” />‘

The image appears correctly centered in the visual editor, but upon viewing the published post, it aligns the image left instead of center.

I found this post on the topic – http://mu.wordpress.org/forums/topic.php?id=9040 – and tried adding the code they suggested to the CSS, however, it didn’t work. The default MU theme works correctly, however the Big 100 themes do not. Do you have any ideas? Is there some CSS code I need to add to the themes? Here is an example from my blog site – http://blogs.bgsu.edu/testblog/2008/11/03/test-image-center/

Thanks for your help. You guys do a great job!

Terence