Recently I was advised by RT to try using Firebug for testing changes to a site. I love this plugin but I have a question: I understand where to make changes in css by getting the path from the pane on the bottom-right. How does one get the change location if the change happens in the html in the bottom-left pane?
If the info in the area just to the top of the pane is the path, then I'm having a very hard time reading it.
Well, Firebug won't really tell you that. You have to use your own initiative for that. For example, if you have created custom modules / content in Joomla and that is what you are inspeciting, then you know that you have to edit in Joomla.
However, any structural changes will probably be related to the template's index.php file. But, determining this is based on an individual case basis.