I agree, start with the Stairways on this site. You probably won't be able to leap straight into the Microsoft certification books (I don't mean that rudely; they do assume a certain level of experience).

There are some free e-books on this site too; http://www.sqlservercentral.com/Books/ . It might be worth starting with the Accidental DBA one.

Also why not sign up for Brent Ozar's free weekly DBA training plan as well? It's pretty good.

http://www.brentozar.com/archive/2013/07/announcing-our-free-accidental-dba-6-month-training-plan/