Jeanne,
From where you are reading this post, scroll down as far as you can go and you will see on the left a selection bar with a down arrow and either "default" or some other choice according to the style of template that you are using right now. OK, click on that little down arrow and you will find all the skins that are available at present. Just click on any one of them and your screen will turn into that particular "skin" and display according to the parameters of that skin. You can click on any or all of them and scroll up and down, change screens, go to any part of the Grumble and it will show you what the screen for that skin will look like. You can find that little selection bar at the bottom of any screen on the Grumble, I think.
Framer, now that you asked, I was always hooked up to Tvb until it went away. I liked it alot and now I am using the default skin only because it is there. If you added the Tvb back in and left all the others as they are it would make my day but you also have to consider the work to maintain it so I am not leaning that way unless you really want to bring it back.
It looks like Mike and I are the only ones so far that were using it to begin with.