Not all functionality is available, in any one wizard, however.
- Fonts and Colors have to be changed, using the Template Designer - Advanced wizard.
- New Gadgets have to be added using "Page Elements", because the Template Designer - Layout wizard lacks the "Add a Gadget" link found in "Page Elements".
- Gadgets can be re positioned on the screen, using either the "Page Elements" or "Template Designer" - Layout wizards.
Right now, it looks like both "Page Elements" and "Template Designer" are going to be used, for maintaining Designer template blogs, for a while. If you want to add gadgets to your blog, you'll need "Page Elements". For tweaking settings, you'll have to use "Template Designer", which will require that you start from the Draft Blogger dashboard. The GUI gadget re positioning process seems to work for both "Page Elements" and "Template Designer" - Layout, though I would not be surprised to see problems resulting from use of "Page Elements" reported sometime soon.