Alot of New Bloggers might not know this but it is VERY Important that you Back your blog up.
*I back mine up once a month just in case something happens,and my blog gets messed up
(Which it has before LOL)
*Ok so you will go to SETTINGS
* You will see at top BLOG TOOLS.
* I save mine in Downloads in Documnets.
*I date it and title it Main Blog.
That away if you do mess it up you will have everything at your fingertips :)