As I mentioned earlier, we'll be using the Thematic theme framework to apply a custom design to the WPBizGuru blog. All the design work we'll be doing will only require changes to the stylesheets.
Note
Child themes
In version 2.7, WordPress introduced the concept of child themes. This means you can create a new theme that uses an existing theme as its base, or parent. The beauty of this is that you don't have to edit the parent theme. All you need to do is create a new stylesheet (style.css) for your child theme, which will override the stylesheet of the parent. In effect, WordPress is using the templates and functionality from the parent theme and applying the styles from the child theme.
This means that if the developers of your parent theme make an update, you can just...