I'm actually doing okay with the skinning, though I was hoping for an up-to-date PanelBar tutorial that would contain the current styles and provide explanation of the how the styles work with the style sheet. I got halfway through the tutorial and it became clear that it was not relevant to the way the stylesheet is currently set up. That said, I've actually been able to play around with the stylesheet on my own and get pretty good results. Just wanted someone to know the PanelBar Skinning Tutorial was out of date.
The tutorial you linked to refers to some interesting tools. I should check those out.