Here is my another 3 Column Blogger Template Xtremeblogg. It is optimized for search engines and supports Adsense. Xtremeblogg is adapted from Wordpress theme designed by www.webrehash.com.
Few settings you will require to change before using the template
a) Keywords and Description : This will help search engines to find and categorize your bog quickly.
<meta content='to be fillerd' name='description'/>
<meta content='to be fillerd' name='keywords'/>
If you are not sure what it does you can search meta tags on Google and get information.
b) Menu item links : These are top menu item links you can change it by finding keyword “menu-wrapper”. Make sure you have checked “Expand Widget Templates” before search.