For those of you having issues getting into the new blog, here ya go:
Open the email you got with the invitation to read the new blog.
Click on the link.
On the right side of the page, click on where it says 'create an account now' (unless you already have a google/blogger account. then just sign in).
Fill in all the info and click 'continue'. It will take you back to the login page.
Sign in and click 'Accept Invitation'.
Save the link in your favorites or wherever.
You should be good to go.