CF
1. Get the Boy Scout First Aid Merit badge book
2. Take a CPR course, Adult Child Infant with Choking and AED
3. The 2001 Version of the SOF is a free down load, if you got the money order the 2008. I do not have a page by page comparison.
4. Understanding dehyrdration, diabetic emergencies, stroke, chest pain and respiratory emergenies is really important.... so any good EMT Basic textbook would be a good read for you.
The biggest thing to keep in mind is if you are dealing with internal injuries you need to evaculate your patient to a hospital so if you are in an austere or hostile environment that is really important since there is little we can do in the field, and transport delays may kill the patient. I would stay friends with your local search and rescue team.