To install:
1. Go to Blogger.com
2. Under your blog, click and open 'Layout'.
3. Click and open the tab 'Edit HTML'
4. Do not tick "Expand Widget Templates"
5. Backup your existing template by clicking 'Download Full Template'
6. Copy and paste the E + A template in the field.
7. Click the 'PREVIEW' button below.
8. If satisfied click 'SAVE TEMPLATE'.
You are done.
Your next step will be to add and modify the widgets on the side bar.