If you've changed the theme on your blog, and the Live Preview is still showing the old one, then all you need to do is refresh the theme! It's pretty easy to do.
1. Access the Preferences window by clicking on Blogo in the Menu Bar and selecting Preferences.
2. Select the blog that you want to refresh the theme for.
3. To the right of the Blog list, select the Advanced tab.
4. Click on that lovely button that says "Refresh Preview"!
And that's it!
When you next open the Live Preview window, Blogo will download your updated theme and apply it!