A. That is used to manage running applications(not services)
B. Quite not possible, you might have done "Clear Data" from contacts storage or something..
anyways.. usually a backup is made on your google account, they should be back in some time.
C. I didn't get your question, but if you mean move apps to SD card: Use manage applications, tap on an application and tap move to SD if available..
If not, you need to root(At your own risk) and use titanium backup(or rom toolbox or something similar)