So where do I find the classes so that I can edit them?
You've already provided the classes, you can clearly see them in the HTML. Are you wanting to change what the text is? The text is the following language string found in your CB language files.
_UE_UPDATE
Bumping
Do not bump. You posted on a weekend. No one is here on weekends. Please see my signature for business hours and days. I also reply to topics in reverse (oldest to newest) so bumping your post does the opposite of your intended goal resulting in being replied to last instead of first.