1. Login to blogger then choose "Layout".
2. Then click the link "Add a Gadget" which will be placed flash animation.
3. Select "HTML / Javascript" then put the following script:
<iframe id='a2847265' name='a2847265' src='http://openx.detik.com/delivery/afr.php?refresh=120&n=a2847265&zoneid=46&cb=insert_random_number_here' framespacing='0' frameborder='no' scrolling='no' width='607' height='75' allowtransparency='true'><img src="http://openx.detik.com/delivery/avw.php?zoneid=46&cb=INSERT_RANDOM_NUMBER_HERE&n=a472de6a" border="0" alt="" />
example
<p>&amp;amp;lt;p&amp;amp;gt;&amp;amp;amp;amp;amp;amp;lt;p&amp;amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;amp;amp;lt;a href='http://openx.detik.com/delivery/ck.php?n=a472de6a&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;cb=insert_random_number_here' target='_blank'&amp;amp;amp;amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;amp;amp;lt;img src="http://openx.detik.com/delivery/avw.php?zoneid=46&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;cb=INSERT_RANDOM_NUMBER_HERE&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;n=a472de6a" border="0" alt="" /&amp;amp;amp;amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;amp;amp;lt;/a&amp;amp;amp;amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;lt;/p&amp;amp;amp;amp;amp;amp;gt;&amp;amp;lt;/p&amp;amp;gt;</p>
change blue color on the scrypt with your image.