All the information is there, it's just organized a bit differently and our brains have to reconfigure how to use the material we've been using for years! It took us 5 minutes to locate the "purchase your own domain" information... Tip: it's located on your blog Overview page, and it's in the bottom right hand corner under the "Blogger Guide".
Can't find your Overview page? When you are in what was your Dashboard, just click the title of the blog you'd like to edit. It will say Overview in orange next to the title.
What do you need help finding in the New Blogger?