See the main article (removing the attribution gadget from blogs with Designer templates) for the most recent information about techniques that do work and for background information about the topic
WARNING:
I have not checked the Blogger Terms and Conditions to find out whether you are allowed to remove the Attribution. Even if they don't mention it today, a requirement to keep the statement could be added tomorrow. This advice does not mean that I, or Google/Blogger, are saying that you should/can/may/must remove the attribution statement.
Note: the following instructions relate to the pre-Sept 2011 Blogger interface. They will not be updated, because this method (generally) does not work.
How to remove the Attribution Gadget by unlocking and then removing it.
1 Go to Design > Edit HTML.
2 Take a backup:
Download a copy of your template: this is a backup - save it somewhere safe, in case things go wrong.
3 Find this section in the template:
<!-- outside of the include in order to lock Attribution widgetThe simplest way to locate it is to use your browser's search function (Edit > Find in Firefox, similar commands in other tools), and look for "lock Attrib".
<b:section class='foot' id='footer-3' showaddelement='no'>
<b:widget id='Attribution1' locked='true' title='' type='Attribution'/>
</b:section> -->
4 Change
locked = 'true'to
locked = 'false'
5 Preview the template change, to check that everything else is ok. If not, fix the problem. (The attribution will still be showing at this stage.)
6 Click Save Template
7 From the Design > Page Elements tab, edit the attribution gadget. It will now have a Remove button on the left hand side. Click this, to remove the gadget from your blog.
8 If you want to, add an an alternative attribution notice.
Related Articles:
Removing the attribution gadget from blogs with Designer templates (current approach)
Giving your blog a credits statement
Types of templates in Blogger.
Template Designer now live in Blogger.
How the data in your Blogger blog is organised
