Google Sites allows you to customize the alignment of your header image (logo) and search box. To take advantage of this capability, follow the steps below:

Instructions

1. 
   Log into your site as a site Owner.
2. Select More Actions >> Manage Site.
3. Select Site Layout from the left navigation menu.
4. On the "Site Layout" screen, select the Change Site Layout button.
5. To position the header contents, select the following options from the "Alignment" section:
• Vertical
• Theme Default
• Top
• Middle
• Bottom
• Horizontal
• Standard
• Center
6. Once complete, click the OK button.
7. Click Save Changes to save your changes.  (You can also click Preview to see the changes without saving, or Cancel to abandon changes altogether.)

• Vertical:  Theme Default
• Horizontal:  Center