"..I am having trouble with finding the settings everyone is talking..."
Today's post is pretty basic but is important because it is the starting point for all your blogging tasks. I am referring to the Blogger Dashboard which essentially is the main launching pad to whatever you want to do with your Blogger blog. Many instructions will first ask you to log into Dashboard (from blogger.com). Once you log in, you will see something like the screen shot below:
In the Dashboard you will see the link for SETTINGS which the blogger who asked the question above is looking for, among other tabs including "create" NEW POST, EDIT POSTS, LAYOUT, MONETIZE and STATS (visitor counter using Google Analytics). Clicking on SETTINGS will take you to another window with many sub-tabs (see screen shot below):

and initially you will be in the BASIC sub-tabs, and right at the bottom, you will see the GLOBAL SETTINGS (applicable to all blogs in the same Blogger account) where you can toggle between the Updated post editor and the old post editor.