If you are having trouble logging into your blogs, here is some information that might help:
1) Make sure you click on "New Blogger" when you sign in (http://www.blogger.com/start). This is at the top, right of the page.
2) Make sure you type in your e-mail address as your username (whatever e-mail you used to create the account).
3) If you are still having trouble, try retrieving your password by going to this page: https://www.google.com/accounts/ForgotPasswd
If you do not know what e-mail address you used to create the blog, you may have to create a new blog. If you do, please make sure you send me the new address.