I saw this post from bloggerplugins.org about a new Template Designer available from Blogger. I have changed my style again using the new tool.
The best feature I like is as shown below, you can choose lots of different layouts and adjust the width on-the-fly. This is really cool!
But I guess may be it's still "Draft", the "edit post" function runs very slowly and I have problem uploading images.
May be we still have to wait a bit longer for it to be officially published!!