Access my blog

Q: I am new to this and posted a blog yesterday but now  I don't know how to access it to update it.
A: Please sign on with your ID and password here: www.blogger.com

That will take you to your dashboard (control centre) where you can add new posts, images, gadgets or edit posts, template, change the font, text colour etc.

source: http://www.google.com/support/forum/p/blogger/thread?tid=3bbff0a4718184d9&hl=en&fid=3bbff0a4718184d90004a5a25a348344